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CVE-2026-67281 is an unauthenticated arbitrary file-read vulnerability in the MikroTik RouterOS 7.x WebFig file-serving functionality. A newly allocated session can retain a stale, uninitialized principal pointer that is subsequently consulted during file-authorization processing. An attacker can manipulate allocator state so this pointer is dereferenced with sufficient authorization and use parent-directory components within an encrypted request URI to traverse outside the intended WebFig file namespace. This permits disclosure of root-owned files, including RouterOS configuration stores that may contain credentials.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A network-accessible, low-complexity, unauthenticated MikroTik RouterOS vulnerability that can disclose highly sensitive information. The provided CVSS v3.0 vector indicates no user interaction or privileges are required and no integrity or availability impact is specified.
A RouterOS file-disclosure vulnerability that exposes root-owned files, including configuration stores.
RouterOS WebFig unauthenticated file-read vulnerability that can expose configuration files and credentials.
One of several vulnerabilities in MikroTik RouterOS. The vulnerabilities are reported as actively exploited; a combination of two enables complete device compromise over SSH.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.