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CVE-2026-99251VulnerabilityPublished Updated

init_vp_index() · Drivers: hv: Avoid infinite retry loop

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99251· Medium

Not known to be exploited · fixed in f561392afb44a8a42c54c1cfd3f33dace0b50537 : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:18 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f561392afb44a8a42c54c1cfd3f33dace0b50537, b3993f6dc106ff416c7a613c631e1e0af451aed7, 7141331f2d245efc07175802a6bf76badec871ed +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 3 Nov 2026

  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
  • ≥ 6640b5df1a38801be6d0595c8cd2177d968d7ee0, < f561392afb44a8a42c54c1cfd3f33dace0b50537
Fixed in
  • f561392afb44a8a42c54c1cfd3f33dace0b50537
LinuxLinuxAffected
  • ≥ 6640b5df1a38801be6d0595c8cd2177d968d7ee0, < b3993f6dc106ff416c7a613c631e1e0af451aed7
Fixed in
  • b3993f6dc106ff416c7a613c631e1e0af451aed7
LinuxLinuxAffected
  • ≥ 6640b5df1a38801be6d0595c8cd2177d968d7ee0, < 7141331f2d245efc07175802a6bf76badec871ed
Fixed in
  • 7141331f2d245efc07175802a6bf76badec871ed
LinuxLinuxAffected
  • ≥ 6640b5df1a38801be6d0595c8cd2177d968d7ee0, < 95fec47cdbf747b81ab22affd7252dda6050ad0c
Fixed in
  • 95fec47cdbf747b81ab22affd7252dda6050ad0c
LinuxLinuxAffected
  • ≥ 6640b5df1a38801be6d0595c8cd2177d968d7ee0, < 32ea0a33e3a0fb7c10c601b43e1b2f6c06a3f5fd
Fixed in
  • 32ea0a33e3a0fb7c10c601b43e1b2f6c06a3f5fd
LinuxLinuxAffected
  • ≥ 6640b5df1a38801be6d0595c8cd2177d968d7ee0, < 15dd3429f0e76ca071657e480cb7e6ff3a1af730
Fixed in
  • 15dd3429f0e76ca071657e480cb7e6ff3a1af730

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

Description

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

References

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