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VulnerabilityPublished

CVE-2025-64169: wazuh · Unchecked Return Value

Affects wazuhSource GCVE Database

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Not known to be exploited · CVSS 5.1 Medium : upgrade to 4.12.0 when convenient.

Data as of 14 Nov 2026, 17:51 UTC

CVSS 4.0 base score
5.1Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 4.05.1
Patch
Available – fixed in 4.12.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Nov 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 14 Nov 2026.

What to do

Upgrade wazuh/wazuh to 4.12.0.

Affected software

ProductAffectedFixed in
GitHubwazuh/wazuhpkg:github/wazuh/wazuhOther threatsAffected
  • >=3.7.0 <4.12.0
Fixed in
  • 4.12.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade Wazuh to version 4.12.0 or later, where this vulnerability has been fixed. No other mitigation or workaround is indicated by the vendor advisory.

Description

CVE-2025-64169 is a vulnerability in Wazuh versions from 3.7.0 up to but not including 4.12.0. The issue arises because the fim_alert() function does not check if oldsum->md5 is NULL before dereferencing it. This can allow a compromised agent to send a crafted message that causes the analysisd process to crash. The vulnerability has been fixed in version 4.12.0.

References

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