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Vulnerabilities

Vulnerability · CVE-2025-29956

Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

Published May 13, 2025 · catalog updated Feb 13, 2026 · Microsoft Windows Server 2022

Check if you run it

No confirmed exploitation is on record for CVE-2025-29956. EPSS is 1.12%. Act only if a listed version of Microsoft Windows Server 2022 is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.4
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.12%
Remediation
Version ranges on file
Affected products
vendor Microsoft Windows Server 2022 10.0.20348.0 <10.0.20348.3692

Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Microsoft Windows Server 2022 10.0.20348.0 <10.0.20348.369210.0.20348.0 <10.0.20348.3692

How to fix CVE-2025-29956

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-29956. EPSS is 1.12%. Act only if a listed version of Microsoft Windows Server 2022 is installed.

Which versions are affected?

Compare what you have installed with Microsoft Windows Server 2022 10.0.20348.0 <10.0.20348.3692 10.0.20348.0 <10.0.20348.3692. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 1.12%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 13, 2025 · EUVD

    Detected

    Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

  2. Feb 13, 2026 · EUVD

    Updated

    Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

Sources

  • CVE.orgVulnerability recordCVE-2025-29956

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-29956

    30-day exploitation probability 1.1%

    first.org
  • EUVDVulnerability recordEUVD-2025-14420

    Buffer over-read in Windows SMB allows an authorized attacker to disclose information over a network.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.