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CVE-2025-40057VulnerabilityPublished Updated

Microsoft · ptp: Add a upper bound on max_vclocks

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2025-40057· Medium

Not known to be exploited · fixed in e9f35294e18da82162004a2f35976e7031aaf7f9 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:19 UTC

Severity
Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in e9f35294e18da82162004a2f35976e7031aaf7f9, da513f2ad1b1b1cf1880ccc2603ce1f1f818eb2e, 35ce5f163889dbce88eda1df661b357a09bbed87 +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 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 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 73f37068d540eba5f93ba3a0019bf479d35ebd76, < e9f35294e18da82162004a2f35976e7031aaf7f9
Fixed in
  • e9f35294e18da82162004a2f35976e7031aaf7f9
LinuxLinuxAffected
  • ≥ 73f37068d540eba5f93ba3a0019bf479d35ebd76, < da513f2ad1b1b1cf1880ccc2603ce1f1f818eb2e
Fixed in
  • da513f2ad1b1b1cf1880ccc2603ce1f1f818eb2e
LinuxLinuxAffected
  • ≥ 73f37068d540eba5f93ba3a0019bf479d35ebd76, < 35ce5f163889dbce88eda1df661b357a09bbed87
Fixed in
  • 35ce5f163889dbce88eda1df661b357a09bbed87
LinuxLinuxAffected
  • ≥ 73f37068d540eba5f93ba3a0019bf479d35ebd76, < 8dd446056336faa2283d62cefc2f576536845edc
Fixed in
  • 8dd446056336faa2283d62cefc2f576536845edc
LinuxLinuxAffected
  • ≥ 73f37068d540eba5f93ba3a0019bf479d35ebd76, < 5ba2f8fd3db1c695f74f7f5df72eb87d52668a66
Fixed in
  • 5ba2f8fd3db1c695f74f7f5df72eb87d52668a66
LinuxLinuxAffected
  • =5.14
Fixed in–

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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