CVE-2026-89028
7.5 HIGHPublished 2026-09-16 · Updated 2026-09-17
AI analysis for this CVE has not been generated yet. Raw NVD data is shown below.
NVD description
MikroTik RouterOS before 7.24 contains a heap memory corruption vulnerability in the userspace SMB daemon that allows remote attackers to corrupt adjacent heap memory by supplying a crafted uniPwdLen value in the SMB1 SessionSetupAndX handler. An attacker can send a malformed SMB1 request with a uniPwdLen field that triggers an integer underflow, causing the resulting value to be used as the copy length in a memory copy operation into a smaller heap buffer, corrupting adjacent heap memory.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-122, CWE-191
All references
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
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- CRITICALCVE-2017-20241
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- HIGHCVE-2026-67860PoC
- HIGHCVE-2026-71202PoC
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