EUVD-2026-50017
GHSA-8v62-p5rj-72x6
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (hq) · only source for this CVE.
CVSS VectorVendor: hq
Lifecycle Timeline
2DescriptionCVE.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.
AnalysisAI
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.
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
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
Mikrotik RouterOS before 6.42.7 and 6.40.9 is vulnerable to stack buffer overflow through the license upgrade interface.
Same technique Authentication Bypass
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External POC / Exploit Code
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