EUVD-2026-50017
GHSA-8v62-p5rj-72x6
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Brute-force prevention, rate limiting
|
Get an e-mail when this CVE is exploited, patched or re-scored. Free account.
Alert meAnalysisAIv1 – Jul 28, 2026
Brute-force vulnerability in MikroTik RouterOS allows adjacent network attackers to gain full administrative access by repeatedly guessing API credentials without effective lockout or rate-limiting. The absence of source-based restrictions and the ability to bypass a weak per-connection delay through concurrent sessions make high-volume password attacks practical. Successful exploitation grants complete control over the device, compromising confidentiality, integrity, and availability.
Affected VersionsENISA
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Know when Mikrotik gets its next vulnerability
- Watch products and get an email when something new is published
- Check this CVE against your own stack and servers
- Exploit and PoC references, threat intelligence from 22 sources
No credit card · 7-day full trial
Severity by source
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Primary rating from Vendor (hq) · only source for this CVE.
CVSS VectorVendor: hq
DescriptionCVE.org
MikroTik RouterOS contains a weakness in its API authentication handling that lacks effective safeguards against excessive login attempts. The system does not enforce meaningful rate-limiting, account lockout, or source-based restrictions, allowing repeated authentication failures to proceed without defensive response. In some versions, a fixed per-connection delay is present, but it can be bypassed through concurrent sessions, resulting in continued high-volume attempts. This deficiency increases the risk that an attacker could eventually obtain valid credentials and gain unauthorized access to administrative services.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
Privilege escalation in MikroTik RouterOS lets a remote, unauthenticated attacker abuse the SSH login helper to rewrite
Remote unauthenticated exploitation of MikroTik RouterOS's Bandwidth Test (btest) service allows two distinct attacks: k
SSH authentication bypass in MikroTik RouterOS allows any unauthenticated network attacker to skip the entire SSH user-a
MikroTik v6.40.5 devices allow remote attackers to cause a denial of service via a flood of ICMP packets. Rated high sev
A vulnerability in the network stack of MikroTik Version 6.38.5 released 2017-03-09 could allow an unauthenticated remot
The MikroTik Router hAP Lite 6.25 has no protection mechanism for unsolicited TCP ACK packets in the case of a fast netw
The container package in MikroTik RouterOS 7.4beta4 allows an attacker to create mount points pointing to symbolic links
An issue was discovered in Mikrotik-Router-Monitoring-System through 2018-10-22. Rated critical severity (CVSS 9.8), thi
A buffer overflow was found in the MikroTik RouterOS SMB service when processing NetBIOS session request messages. Rated
Authentication bypass in MikroTik RouterOS lets a remote unauthenticated attacker log in over SSH as an authorized user
MikroTik RouterOS through 6.42 allows unauthenticated remote attackers to read arbitrary files and remote authenticated
Mikrotik RouterOs before stable v7.5 was discovered to contain an out-of-bounds read in the hotspot process. Rated high
Exploit-DB