7.5

CVE-2026-67281

Medienbericht
Exploit

Unauthenticated file read in Mikrotik RouterOS

RouterOS WebFig contains an unauthenticated file-read vulnerability in the /jsproxy path where a newly allocated session retains a stale uninitialized principal pointer used for file authorization. An unauthenticated attacker can prepare the allocator so that the file-serving path dereferences this pointer with sufficient rights, then supply parent-directory components in an encrypted URI to escape the WebFig file namespace and disclose root-owned files, including configuration stores containing credentials.This issue affects only 7.x branch was fixed in versions: 7.23.4 (Long-term) and 7.24.2 (Stable)
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mikrotik ≫ Routeros Version >= 7.20 < 7.23.4
Mikrotik ≫ Routeros Version >= 7.24 < 7.24.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.46% 0.384
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
cvd@cert.pl 8.7 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

CWE-824 Access of Uninitialized Pointer

The product accesses or uses a pointer that has not been initialized.

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VulnDex Intel
Media Report
07.09.2026 18:21
https://cert.pl/en/posts/2026/09/mikrotik-routeros-cve
Third Party Advisory
https://cert.pl/en/posts/2026/09/vulnerabilities-in-mikrotik-routeros-actively-exploited/
Third Party Advisory
Mitigation
https://npratley.net/reversing-mikrotiks-silent-patch-the-routeros-7-23-4-fix-they-wouldnt-explain/
Third Party Advisory
Exploit
https://mikrotik.com/supportsec/september-2026-vulnerability/
Vendor Advisory
https://forum.mikrotik.com/t/7-23-4-long-term-is-released/272801
Release Notes
https://forum.mikrotik.com/t/7-24-2-stable-is-released/272800
Release Notes