CVE-2026-67281

RouterOS WebFig contains an unauthenticated file-read vulnerability in the /jsproxy path where a newly allocated session retains a stale uninitialized…

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…

5. Sep 2026

Ausgewertete Quellen

• Hersteller
  https://mikrotik.com/supportsec/september-2026-vulnerability/
• Hinweis
  https://cert.pl/en/posts/2026/09/mikrotik-routeros-cve
• Hinweis
  https://cert.pl/en/posts/2026/09/vulnerabilities-in-mikrotik-routeros-actively-exploited/
• Hinweis
  https://npratley.net/reversing-mikrotiks-silent-patch-the-routeros-7-23-4-fix-they-wouldnt-explain/
• NVD
  CVE-2026-67281