CVE-2026-67281highCWE-22CWE-824

CVE-2026-67281: high-severity vulnerability in Mikrotik RouterOS

Unauthenticated file read in Mikrotik RouterOS

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.7epss 0.7%
from disclosure to weapon39 days
Published on NVDSep 5
1st PoC+39d
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)
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
Affected products
Mikrotik · RouterOS
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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