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Routeros

45 CVEs product

Monthly

CVE-2026-86060 Sep 05, 20:00 CRITICAL POC EUVD KEV PATCH Act Now

Privilege escalation in MikroTik RouterOS lets a remote, unauthenticated attacker abuse the SSH login helper to rewrite the trusted RouterOS policy mask by supplying a username that begins with a prohibited character. Because the flaw is reached before authentication completes, an attacker who can open an SSH session to an affected device can escalate to full administrative privileges. Publicly available exploit code exists, and CERT-PL (the reporter) has published a companion advisory describing these RouterOS issues as actively exploited, though the CVE is not confirmed on CISA KEV in the provided data.

Mikrotik Privilege Escalation Routeros
NVD VulDB
CVSS 4.0
9.2
EPSS
0.4%
CVE-2026-67281 Sep 05, 20:00 HIGH POC PATCH This Week

Unauthenticated file read in MikroTik RouterOS WebFig exposes root-owned configuration files - including credential stores - to any network attacker who can reach the management interface. The vulnerability chains an uninitialized principal pointer (CWE-824) in /jsproxy session allocation with an encrypted URI path traversal, allowing pre-authentication escalation of file-read rights followed by namespace escape. Fixed versions 6.49.21 (Long-term), 7.23.4 (Long-term), and 7.24.2 (Stable) are available; a public exploit writeup exists, and CERT-PL's September 2026 reporting references active exploitation of this class of MikroTik vulnerabilities.

Mikrotik Memory Corruption Information Disclosure Routeros
NVD VulDB
CVSS 4.0
8.7
EPSS
0.5%
CVE-2026-67279 Sep 05, 20:00 MEDIUM POC PATCH This Month

SSH authentication bypass in MikroTik RouterOS allows any unauthenticated network attacker to skip the entire SSH user-authentication phase by triggering a client-requested rekey, causing the server to advance directly into the connection protocol and accept session channel and exec requests. The result is unauthenticated file creation, overwrite, and exfiltration within the RouterOS managed file namespace - including support bundles containing configuration and diagnostic data. Publicly available exploit code exists, CERT-PL has published dedicated research, and a companion CERT-PL post titled 'vulnerabilities-in-mikrotik-routeros-actively-exploited' suggests observed exploitation in the wild, though CISA KEV listing is not confirmed in the available data.

Mikrotik Information Disclosure Routeros Authentication Bypass
NVD VulDB
CVSS 4.0
6.9
EPSS
0.4%
CVE-2026-67278 Sep 05, 20:00 MEDIUM POC PATCH This Month

TLS server impersonation in MikroTik RouterOS is enabled by improper RSA/PKCS#1 v1.5 signature verification that fails to reject malformed signatures produced via cube-root forgery against an e=3 root CA already present in the router's trust store. An attacker positioned to intercept outbound RouterOS TLS sessions can forge a trusted intermediate CA certificate - using only the root CA's public certificate, without its private key - and issue leaf certificates for arbitrary hostnames, fully impersonating TLS servers the router connects to. A publicly available exploit exists based on CERT-PL research and independent reverse-engineering of the 7.23.4 silent patch; vendor-released patches are available across all supported branches.

Mikrotik Routeros
NVD VulDB
CVSS 4.0
6.3
EPSS
0.2%
CVE-2026-67277 Sep 05, 20:00 HIGH POC EUVD KEV PATCH This Week

Remote unauthenticated exploitation of MikroTik RouterOS's Bandwidth Test (btest) service allows two distinct attacks: kernel memory disclosure and kernel crash/restart. The btest server accepts a 'related' secondary UDP connection before the primary TCP control session completes authentication, permitting a pre-auth attacker to drive the btest data path. With random-data=false, the kernel transmits uninitialized packet buffer contents to the attacker; a separate unchecked inverted packet-size interval triggers unsigned integer underflow producing anomalously large fragmented output that crashes the RouterOS kernel. CERT-PL reported this vulnerability and a CERT-PL advisory titled 'actively exploited' indicates in-the-wild use, though CISA KEV confirmation is absent from available data; a public exploit and binary reverse-engineering write-up are available.

Mikrotik Authentication Bypass Routeros
NVD VulDB
CVSS 4.0
8.8
EPSS
0.4%
CVE-2026-67276 Sep 05, 20:00 CRITICAL POC EUVD KEV PATCH Act Now

Authentication bypass in MikroTik RouterOS lets a remote unauthenticated attacker log in over SSH as an authorized user by exploiting incomplete RSA public-key comparison. During public-key auth RouterOS matches only the key type and modulus and ignores the exponent, so an attacker who knows an authorized user's RSA modulus can submit a key with exponent 1, forge a signature the server will validate, and open a command channel without the private key. Publicly available exploit code exists (reverse-engineered from the silent patch), and CERT-PL - the reporting party - describes the RouterOS vulnerabilities as being actively exploited, though this CVE is not confirmed in CISA KEV from the provided data.

Mikrotik Routeros
NVD VulDB
CVSS 4.0
9.2
EPSS
0.2%
CVE-2026-14227 Jul 30, 17:39 MEDIUM CISA This Month

Insufficient session expiration in the MikroTik RouterOS API allows authenticated users whose permissions have been reduced to retain their prior, elevated access rights for the duration of the stale session. Specifically, when a user's group membership or permission set is downgraded, or when an inactivity timeout is expected to expire a session, the RouterOS API fails to re-evaluate or invalidate the existing session token - exposing confidential routing, firewall, or credential data the user should no longer reach. No public exploit has been identified and the vulnerability is not listed in the CISA KEV catalog; however, ICS-CERT's publication of ICSA-26-211-01 signals elevated concern for operational technology networks where MikroTik devices are used for segmentation and industrial network management.

Information Disclosure Mikrotik Routeros
NVD
CVSS 4.0
6.9
EPSS
0.2%
CVE-2025-6443 Jun 25, 22:15 HIGH This Week

CVE-2025-6443 is an unauthenticated remote access control bypass vulnerability in Mikrotik RouterOS affecting VXLAN traffic handling. The vulnerability allows remote attackers to bypass ingress filtering and gain unauthorized access to internal network resources by exploiting improper validation of remote IP addresses in VXLAN packets. With a CVSS score of 7.2 (Network-based, Low complexity, No privileges required) and unauthenticated exploitation capability, this vulnerability presents a significant risk to exposed RouterOS deployments, particularly those utilizing VXLAN for network segmentation.

Mikrotik Authentication Bypass Routeros
NVD
CVSS 3.0
7.2
EPSS
0.2%
CVE-2024-54952 May 29, 20:15 HIGH This Month

MikroTik RouterOS 6.40.5, the SMB service contains a memory corruption vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Null Pointer Dereference Buffer Overflow Mikrotik Denial Of Service Routeros
NVD GitHub
CVSS 3.1
7.5
EPSS
0.3%
CVE-2024-54772 Feb 11, 23:15 MEDIUM POC This Month

An issue was discovered in the Winbox service of MikroTik RouterOS long-term release v6.43.13 through v6.49.13 and stable v6.43 through v7.17.2. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD GitHub
CVSS 3.1
5.4
EPSS
4.9%
CVE-2023-41570 Nov 14, 23:15 MEDIUM POC This Month

MikroTik RouterOS v7.1 to 7.11 was discovered to contain incorrect access control mechanisms in place for the Rest API. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Mikrotik Authentication Bypass Routeros
NVD
CVSS 3.1
5.3
EPSS
0.5%
CVE-2023-30800 Sep 07, 16:15 HIGH POC This Week

The web server used by MikroTik RouterOS version 6 is affected by a heap memory corruption issue. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Memory Corruption Buffer Overflow Mikrotik Routeros
NVD
CVSS 3.1
7.5
EPSS
1.7%
CVE-2023-30799 Jul 19, 15:15 HIGH This Week

MikroTik RouterOS stable before 6.49.7 and long-term through 6.48.6 are vulnerable to a privilege escalation issue. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Privilege Escalation RCE Mikrotik Routeros
NVD GitHub
CVSS 3.1
7.2
EPSS
1.3%
CVE-2020-20021 Jul 12, 13:15 HIGH POC This Week

An issue discovered in MikroTik Router v6.46.3 and earlier allows attacker to cause denial of service via misconfiguration in the SSH daemon. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD Exploit-DB
CVSS 3.1
7.5
EPSS
1.3%
CVE-2023-24094 Mar 27, 14:15 HIGH POC This Week

An issue in the bridge2 component of MikroTik RouterOS v6.40.5 allows attackers to cause a Denial of Service (DoS) via crafted packets. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Memory Corruption Buffer Overflow Routeros
NVD GitHub VulDB
CVSS 3.1
7.5
EPSS
1.1%
CVE-2022-45313 Dec 05, 16:15 HIGH POC This Week

Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure RCE Buffer Overflow Routeros
NVD GitHub
CVSS 3.1
8.8
EPSS
1.4%
CVE-2022-36522 Aug 26, 18:15 MEDIUM POC This Month

Mikrotik RouterOs through stable v6.48.3 was discovered to contain an assertion failure in the component /advanced-tools/nova/bin/netwatch. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD GitHub
CVSS 3.1
6.5
EPSS
1.1%
CVE-2022-34960 Aug 25, 02:15 CRITICAL POC Act Now

The container package in MikroTik RouterOS 7.4beta4 allows an attacker to create mount points pointing to symbolic links, which resolve to locations on the host device. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Mikrotik Routeros
NVD
CVSS 3.1
9.8
EPSS
1.1%
CVE-2021-27221 Mar 19, 03:15 HIGH POC This Week

MikroTik RouterOS 6.47.9 allows remote authenticated ftp users to create or overwrite arbitrary .rsc files via the /export command. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
CVSS 3.1
8.1
EPSS
4.5%
CVE-2021-3014 Jan 04, 19:15 MEDIUM POC This Month

In MikroTik RouterOS through 2021-01-04, the hotspot login page is vulnerable to reflected XSS via the target parameter. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik XSS Routeros
NVD GitHub
CVSS 3.1
6.1
EPSS
0.9%
CVE-2020-11881 Sep 14, 21:15 HIGH POC This Week

An array index error in MikroTik RouterOS 6.41.3 through 6.46.5, and 7.x through 7.0 Beta5, allows an unauthenticated remote attacker to crash the SMB server via modified setup-request packets, aka. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Mikrotik Routeros
NVD GitHub
CVSS 3.1
7.5
EPSS
4.3%
CVE-2020-10364 Mar 23, 16:15 HIGH POC This Week

The SSH daemon on MikroTik routers through v6.44.3 could allow remote attackers to generate CPU activity, trigger refusal of new authorized connections, and cause a reboot via connect and write. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Mikrotik Routeros
NVD Exploit-DB
CVSS 3.1
7.5
EPSS
2.6%
CVE-2019-3979 Oct 29, 19:15 HIGH This Week

RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below are vulnerable to a DNS unrelated data attack. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
CVSS 3.1
7.5
EPSS
0.9%
CVE-2019-3978 Oct 29, 19:15 HIGH POC THREAT This Week

RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below allow remote unauthenticated attackers to trigger DNS queries via port 8291. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Mikrotik Routeros
NVD Exploit-DB
CVSS 3.1
7.5
EPSS
10.3%
CVE-2019-3977 Oct 29, 19:15 HIGH This Week

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below insufficiently validate where upgrade packages are download from when using the autoupgrade feature. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
CVSS 3.1
7.5
EPSS
1.1%
CVE-2019-3976 Oct 29, 19:15 HIGH This Week

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below are vulnerable to an arbitrary directory creation vulnerability via the upgrade package's name field. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
CVSS 3.1
8.8
EPSS
1.7%
CVE-2019-15055 Aug 26, 21:15 MEDIUM POC This Month

MikroTik RouterOS through 6.44.5 and 6.45.x through 6.45.3 improperly handles the disk name, which allows authenticated users to delete arbitrary files. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Path Traversal Mikrotik Routeros
NVD GitHub
CVSS 3.0
6.5
EPSS
2.2%
CVE-2019-13955 Jul 26, 13:15 MEDIUM This Month

Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to stack exhaustion. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
CVSS 3.0
6.5
EPSS
3.8%
CVE-2019-13954 Jul 26, 13:15 MEDIUM This Month

Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to memory exhaustion. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
CVSS 3.0
6.5
EPSS
4.3%
CVE-2019-13074 Jul 03, 21:15 HIGH This Week

A vulnerability in the FTP daemon on MikroTik routers through 6.44.3 could allow remote attackers to exhaust all available memory, causing the device to reboot because of uncontrolled resource. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
CVSS 3.0
7.5
EPSS
2.0%
CVE-2019-3943 Apr 10, 21:29 HIGH POC This Week

MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Path Traversal Mikrotik Routeros
NVD
CVSS 3.1
8.1
EPSS
3.7%
CVE-2019-3924 Feb 20, 20:29 HIGH POC THREAT This Week

MikroTik RouterOS before 6.43.12 (stable) and 6.42.12 (long-term) is vulnerable to an intermediary vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Mikrotik Routeros
NVD Exploit-DB
CVSS 3.1
7.5
EPSS
15.7%
CVE-2018-1159 Aug 23, 19:29 MEDIUM POC This Month

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a memory corruption vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Buffer Overflow Routeros
NVD
CVSS 3.0
6.5
EPSS
2.5%
CVE-2018-1158 Aug 23, 19:29 MEDIUM POC This Month

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a stack exhaustion vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD
CVSS 3.0
6.5
EPSS
2.5%
CVE-2018-1157 Aug 23, 19:29 MEDIUM POC This Month

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a memory exhaustion vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD
CVSS 3.0
6.5
EPSS
4.4%
CVE-2018-1156 Aug 23, 19:29 HIGH POC This Week

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to stack buffer overflow through the license upgrade interface. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Memory Corruption RCE Buffer Overflow Routeros
NVD
CVSS 3.0
8.8
EPSS
7.4%
CVE-2018-14847 Aug 02, 07:29 CRITICAL POC KEV THREAT Act Now

MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated attackers to write arbitrary files due to a directory traversal vulnerability. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Path Traversal Routeros
NVD GitHub Exploit-DB
CVSS 3.1
9.1
EPSS
96.1%
CVE-2018-10066 Apr 13, 13:29 HIGH POC This Week

An issue was discovered in MikroTik RouterOS 6.41.4. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
CVSS 3.0
8.1
EPSS
1.0%
CVE-2018-7445 Mar 19, 21:29 CRITICAL POC KEV THREAT Act Now

A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik RCE Buffer Overflow Routeros
NVD Exploit-DB
CVSS 3.1
9.8
EPSS
61.0%
CVE-2017-8338 May 18, 06:29 HIGH POC This Week

A vulnerability in MikroTik Version 6.38.5 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of UDP packets on port 500 (used for L2TP over IPsec), preventing. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
CVSS 3.0
7.5
EPSS
2.9%
CVE-2017-7285 Mar 29, 14:59 HIGH POC THREAT Act Now

A vulnerability in the network stack of MikroTik Version 6.38.5 released 2017-03-09 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of TCP RST packets,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 21.2%.

Denial Of Service Mikrotik Routeros
NVD Exploit-DB
CVSS 3.0
7.5
EPSS
21.2%
CVE-2017-6444 Mar 12, 05:59 HIGH POC THREAT Act Now

The MikroTik Router hAP Lite 6.25 has no protection mechanism for unsolicited TCP ACK packets in the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 18.1%.

Denial Of Service Mikrotik Routeros
NVD Exploit-DB
CVSS 3.1
7.5
EPSS
18.1%
CVE-2017-6297 Feb 27, 07:59 MEDIUM POC This Month

The L2TP Client in MikroTik RouterOS versions 6.83.3 and 6.37.4 does not enable IPsec encryption after a reboot, which allows man-in-the-middle attackers to view transmitted data unencrypted and gain. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
CVSS 3.0
5.9
EPSS
0.1%
CVE-2015-2350 Mar 19, 14:59 MEDIUM POC This Month

Cross-site request forgery (CSRF) vulnerability in MikroTik RouterOS 5.0 and earlier allows remote attackers to hijack the authentication of administrators for requests that change the administrator. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

CSRF Mikrotik Routeros
NVD
CVSS 2.0
6.8
EPSS
0.2%
CVE-2012-6050 Nov 27, 04:49 MEDIUM POC This Month

The winbox service in MikroTik RouterOS 5.15 and earlier allows remote attackers to cause a denial of service (CPU consumption), read the router version, and possibly have other impacts via a request. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD Exploit-DB
CVSS 2.0
6.4
EPSS
8.6%
EPSS 0% CVSS 9.2
CRITICAL POC EUVD KEV PATCH Act Now

Privilege escalation in MikroTik RouterOS lets a remote, unauthenticated attacker abuse the SSH login helper to rewrite the trusted RouterOS policy mask by supplying a username that begins with a prohibited character. Because the flaw is reached before authentication completes, an attacker who can open an SSH session to an affected device can escalate to full administrative privileges. Publicly available exploit code exists, and CERT-PL (the reporter) has published a companion advisory describing these RouterOS issues as actively exploited, though the CVE is not confirmed on CISA KEV in the provided data.

Mikrotik Privilege Escalation Routeros
NVD VulDB
EPSS 0% CVSS 8.7
HIGH POC PATCH This Week

Unauthenticated file read in MikroTik RouterOS WebFig exposes root-owned configuration files - including credential stores - to any network attacker who can reach the management interface. The vulnerability chains an uninitialized principal pointer (CWE-824) in /jsproxy session allocation with an encrypted URI path traversal, allowing pre-authentication escalation of file-read rights followed by namespace escape. Fixed versions 6.49.21 (Long-term), 7.23.4 (Long-term), and 7.24.2 (Stable) are available; a public exploit writeup exists, and CERT-PL's September 2026 reporting references active exploitation of this class of MikroTik vulnerabilities.

Mikrotik Memory Corruption Information Disclosure +1
NVD VulDB
EPSS 0% CVSS 6.9
MEDIUM POC PATCH This Month

SSH authentication bypass in MikroTik RouterOS allows any unauthenticated network attacker to skip the entire SSH user-authentication phase by triggering a client-requested rekey, causing the server to advance directly into the connection protocol and accept session channel and exec requests. The result is unauthenticated file creation, overwrite, and exfiltration within the RouterOS managed file namespace - including support bundles containing configuration and diagnostic data. Publicly available exploit code exists, CERT-PL has published dedicated research, and a companion CERT-PL post titled 'vulnerabilities-in-mikrotik-routeros-actively-exploited' suggests observed exploitation in the wild, though CISA KEV listing is not confirmed in the available data.

Mikrotik Information Disclosure Routeros +1
NVD VulDB
EPSS 0% CVSS 6.3
MEDIUM POC PATCH This Month

TLS server impersonation in MikroTik RouterOS is enabled by improper RSA/PKCS#1 v1.5 signature verification that fails to reject malformed signatures produced via cube-root forgery against an e=3 root CA already present in the router's trust store. An attacker positioned to intercept outbound RouterOS TLS sessions can forge a trusted intermediate CA certificate - using only the root CA's public certificate, without its private key - and issue leaf certificates for arbitrary hostnames, fully impersonating TLS servers the router connects to. A publicly available exploit exists based on CERT-PL research and independent reverse-engineering of the 7.23.4 silent patch; vendor-released patches are available across all supported branches.

Mikrotik Routeros
NVD VulDB
EPSS 0% CVSS 8.8
HIGH POC EUVD KEV PATCH This Week

Remote unauthenticated exploitation of MikroTik RouterOS's Bandwidth Test (btest) service allows two distinct attacks: kernel memory disclosure and kernel crash/restart. The btest server accepts a 'related' secondary UDP connection before the primary TCP control session completes authentication, permitting a pre-auth attacker to drive the btest data path. With random-data=false, the kernel transmits uninitialized packet buffer contents to the attacker; a separate unchecked inverted packet-size interval triggers unsigned integer underflow producing anomalously large fragmented output that crashes the RouterOS kernel. CERT-PL reported this vulnerability and a CERT-PL advisory titled 'actively exploited' indicates in-the-wild use, though CISA KEV confirmation is absent from available data; a public exploit and binary reverse-engineering write-up are available.

Mikrotik Authentication Bypass Routeros
NVD VulDB
EPSS 0% CVSS 9.2
CRITICAL POC EUVD KEV PATCH Act Now

Authentication bypass in MikroTik RouterOS lets a remote unauthenticated attacker log in over SSH as an authorized user by exploiting incomplete RSA public-key comparison. During public-key auth RouterOS matches only the key type and modulus and ignores the exponent, so an attacker who knows an authorized user's RSA modulus can submit a key with exponent 1, forge a signature the server will validate, and open a command channel without the private key. Publicly available exploit code exists (reverse-engineered from the silent patch), and CERT-PL - the reporting party - describes the RouterOS vulnerabilities as being actively exploited, though this CVE is not confirmed in CISA KEV from the provided data.

Mikrotik Routeros
NVD VulDB
EPSS 0% CVSS 6.9
MEDIUM This Month

Insufficient session expiration in the MikroTik RouterOS API allows authenticated users whose permissions have been reduced to retain their prior, elevated access rights for the duration of the stale session. Specifically, when a user's group membership or permission set is downgraded, or when an inactivity timeout is expected to expire a session, the RouterOS API fails to re-evaluate or invalidate the existing session token - exposing confidential routing, firewall, or credential data the user should no longer reach. No public exploit has been identified and the vulnerability is not listed in the CISA KEV catalog; however, ICS-CERT's publication of ICSA-26-211-01 signals elevated concern for operational technology networks where MikroTik devices are used for segmentation and industrial network management.

Information Disclosure Mikrotik Routeros
NVD
EPSS 0% CVSS 7.2
HIGH This Week

CVE-2025-6443 is an unauthenticated remote access control bypass vulnerability in Mikrotik RouterOS affecting VXLAN traffic handling. The vulnerability allows remote attackers to bypass ingress filtering and gain unauthorized access to internal network resources by exploiting improper validation of remote IP addresses in VXLAN packets. With a CVSS score of 7.2 (Network-based, Low complexity, No privileges required) and unauthenticated exploitation capability, this vulnerability presents a significant risk to exposed RouterOS deployments, particularly those utilizing VXLAN for network segmentation.

Mikrotik Authentication Bypass Routeros
NVD
EPSS 0% CVSS 7.5
HIGH This Month

MikroTik RouterOS 6.40.5, the SMB service contains a memory corruption vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Null Pointer Dereference Buffer Overflow Mikrotik +2
NVD GitHub
EPSS 5% CVSS 5.4
MEDIUM POC This Month

An issue was discovered in the Winbox service of MikroTik RouterOS long-term release v6.43.13 through v6.49.13 and stable v6.43 through v7.17.2. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM POC This Month

MikroTik RouterOS v7.1 to 7.11 was discovered to contain incorrect access control mechanisms in place for the Rest API. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

Mikrotik Authentication Bypass Routeros
NVD
EPSS 2% CVSS 7.5
HIGH POC This Week

The web server used by MikroTik RouterOS version 6 is affected by a heap memory corruption issue. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Memory Corruption Buffer Overflow Mikrotik +1
NVD
EPSS 1% CVSS 7.2
HIGH This Week

MikroTik RouterOS stable before 6.49.7 and long-term through 6.48.6 are vulnerable to a privilege escalation issue. Rated high severity (CVSS 7.2), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Privilege Escalation RCE Mikrotik +1
NVD GitHub
EPSS 1% CVSS 7.5
HIGH POC This Week

An issue discovered in MikroTik Router v6.46.3 and earlier allows attacker to cause denial of service via misconfiguration in the SSH daemon. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD Exploit-DB
EPSS 1% CVSS 7.5
HIGH POC This Week

An issue in the bridge2 component of MikroTik RouterOS v6.40.5 allows attackers to cause a Denial of Service (DoS) via crafted packets. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Memory Corruption +2
NVD GitHub VulDB
EPSS 1% CVSS 8.8
HIGH POC This Week

Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure RCE +2
NVD GitHub
EPSS 1% CVSS 6.5
MEDIUM POC This Month

Mikrotik RouterOs through stable v6.48.3 was discovered to contain an assertion failure in the component /advanced-tools/nova/bin/netwatch. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD GitHub
EPSS 1% CVSS 9.8
CRITICAL POC Act Now

The container package in MikroTik RouterOS 7.4beta4 allows an attacker to create mount points pointing to symbolic links, which resolve to locations on the host device. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Mikrotik Routeros
NVD
EPSS 4% CVSS 8.1
HIGH POC This Week

MikroTik RouterOS 6.47.9 allows remote authenticated ftp users to create or overwrite arbitrary .rsc files via the /export command. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
EPSS 1% CVSS 6.1
MEDIUM POC This Month

In MikroTik RouterOS through 2021-01-04, the hotspot login page is vulnerable to reflected XSS via the target parameter. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik XSS Routeros
NVD GitHub
EPSS 4% CVSS 7.5
HIGH POC This Week

An array index error in MikroTik RouterOS 6.41.3 through 6.46.5, and 7.x through 7.0 Beta5, allows an unauthenticated remote attacker to crash the SMB server via modified setup-request packets, aka. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Mikrotik Routeros
NVD GitHub
EPSS 3% CVSS 7.5
HIGH POC This Week

The SSH daemon on MikroTik routers through v6.44.3 could allow remote attackers to generate CPU activity, trigger refusal of new authorized connections, and cause a reboot via connect and write. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Mikrotik Routeros
NVD Exploit-DB
EPSS 1% CVSS 7.5
HIGH This Week

RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below are vulnerable to a DNS unrelated data attack. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
EPSS 10% CVSS 7.5
HIGH POC THREAT This Week

RouterOS versions 6.45.6 Stable, 6.44.5 Long-term, and below allow remote unauthenticated attackers to trigger DNS queries via port 8291. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Mikrotik Routeros
NVD Exploit-DB
EPSS 1% CVSS 7.5
HIGH This Week

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below insufficiently validate where upgrade packages are download from when using the autoupgrade feature. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
EPSS 2% CVSS 8.8
HIGH This Week

RouterOS 6.45.6 Stable, RouterOS 6.44.5 Long-term, and below are vulnerable to an arbitrary directory creation vulnerability via the upgrade package's name field. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
EPSS 2% CVSS 6.5
MEDIUM POC This Month

MikroTik RouterOS through 6.44.5 and 6.45.x through 6.45.3 improperly handles the disk name, which allows authenticated users to delete arbitrary files. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Path Traversal Mikrotik Routeros
NVD GitHub
EPSS 4% CVSS 6.5
MEDIUM This Month

Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to stack exhaustion. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
EPSS 4% CVSS 6.5
MEDIUM This Month

Mikrotik RouterOS before 6.44.5 (long-term release tree) is vulnerable to memory exhaustion. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
EPSS 2% CVSS 7.5
HIGH This Week

A vulnerability in the FTP daemon on MikroTik routers through 6.44.3 could allow remote attackers to exhaust all available memory, causing the device to reboot because of uncontrolled resource. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
EPSS 4% CVSS 8.1
HIGH POC This Week

MikroTik RouterOS versions Stable 6.43.12 and below, Long-term 6.42.12 and below, and Testing 6.44beta75 and below are vulnerable to an authenticated, remote directory traversal via the HTTP or. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Path Traversal Mikrotik Routeros
NVD
EPSS 16% CVSS 7.5
HIGH POC THREAT This Week

MikroTik RouterOS before 6.43.12 (stable) and 6.42.12 (long-term) is vulnerable to an intermediary vulnerability. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Authentication Bypass Mikrotik Routeros
NVD Exploit-DB
EPSS 2% CVSS 6.5
MEDIUM POC This Month

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a memory corruption vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Buffer Overflow Routeros
NVD
EPSS 2% CVSS 6.5
MEDIUM POC This Month

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a stack exhaustion vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD
EPSS 4% CVSS 6.5
MEDIUM POC This Month

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to a memory exhaustion vulnerability. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD
EPSS 7% CVSS 8.8
HIGH POC This Week

Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to stack buffer overflow through the license upgrade interface. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Memory Corruption RCE +2
NVD
EPSS 96% CVSS 9.1
CRITICAL POC KEV THREAT Act Now

MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated attackers to write arbitrary files due to a directory traversal vulnerability. Rated critical severity (CVSS 9.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Path Traversal Routeros
NVD GitHub Exploit-DB
EPSS 1% CVSS 8.1
HIGH POC This Week

An issue was discovered in MikroTik RouterOS 6.41.4. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
EPSS 61% CVSS 9.8
CRITICAL POC KEV THREAT Act Now

A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik RCE Buffer Overflow +1
NVD Exploit-DB
EPSS 3% CVSS 7.5
HIGH POC This Week

A vulnerability in MikroTik Version 6.38.5 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of UDP packets on port 500 (used for L2TP over IPsec), preventing. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Denial Of Service Mikrotik Routeros
NVD
EPSS 21% CVSS 7.5
HIGH POC THREAT Act Now

A vulnerability in the network stack of MikroTik Version 6.38.5 released 2017-03-09 could allow an unauthenticated remote attacker to exhaust all available CPU via a flood of TCP RST packets,. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 21.2%.

Denial Of Service Mikrotik Routeros
NVD Exploit-DB
EPSS 18% CVSS 7.5
HIGH POC THREAT Act Now

The MikroTik Router hAP Lite 6.25 has no protection mechanism for unsolicited TCP ACK packets in the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 18.1%.

Denial Of Service Mikrotik Routeros
NVD Exploit-DB
EPSS 0% CVSS 5.9
MEDIUM POC This Month

The L2TP Client in MikroTik RouterOS versions 6.83.3 and 6.37.4 does not enable IPsec encryption after a reboot, which allows man-in-the-middle attackers to view transmitted data unencrypted and gain. Rated medium severity (CVSS 5.9), this vulnerability is remotely exploitable, no authentication required. Public exploit code available and no vendor patch available.

Mikrotik Information Disclosure Routeros
NVD
EPSS 0% CVSS 6.8
MEDIUM POC This Month

Cross-site request forgery (CSRF) vulnerability in MikroTik RouterOS 5.0 and earlier allows remote attackers to hijack the authentication of administrators for requests that change the administrator. Rated medium severity (CVSS 6.8), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.

CSRF Mikrotik Routeros
NVD
EPSS 9% CVSS 6.4
MEDIUM POC This Month

The winbox service in MikroTik RouterOS 5.15 and earlier allows remote attackers to cause a denial of service (CPU consumption), read the router version, and possibly have other impacts via a request. Rated medium severity (CVSS 6.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Mikrotik Denial Of Service Routeros
NVD Exploit-DB

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