MEDIUM

CVE-2026-56719

2026-09-16 CVSS v3.1

CVSS

6.5

Description

MikroTik RouterOS before 7.24 contains an out-of-bounds read vulnerability in the userspace SMB daemon that allows unauthenticated attackers to read beyond the end of the request buffer by supplying a crafted uniPwdLen field value in a minimal SMB1 SessionSetupAndX frame. The out-of-bounds read occurs in the SessionSetupAndX handler before any credential validation, potentially exposing sensitive memory contents.

Weakness (CWE)

CWE-125 Out-of-bounds Read

EPSS Score

0.38%

Probability of exploitation in next 30 days

31.5th percentile

References

https://forum.mikrotik.com/t/7-24-stable-is-released/272381 https://www.vulncheck.com/advisories/mikrotik-routeros-out-of-bounds-read-via-smb1-sessionsetupandx

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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