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CVE-2026-99201VulnerabilityPublished

Microsoft · netlink: avoid hashing the network namespace pointer

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99201· Medium

Not known to be exploited · fixed in f88bb3606e4bd11ee035b682cddc2999e604609a : update Microsoft when convenient.

Data as of 29 Oct 2026, 11:33 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f88bb3606e4bd11ee035b682cddc2999e604609a, bdd55b8a8acbf6b4840ab420eb6a63774bf4593b, 078deff25f8a849ecd1c3fe17b1e473b1cf44f28

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Oct 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 29 Oct 2026.

What to do

Upgrade Linux to f88bb3606e4bd11ee035b682cddc2999e604609a, bdd55b8a8acbf6b4840ab420eb6a63774bf4593b or 078deff25f8a849ecd1c3fe17b1e473b1cf44f28.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ c428ecd1a21f1457ca3beb4df71b8a079c410e41, < f88bb3606e4bd11ee035b682cddc2999e604609a
Fixed in
  • f88bb3606e4bd11ee035b682cddc2999e604609a
LinuxLinuxAffected
  • ≥ c428ecd1a21f1457ca3beb4df71b8a079c410e41, < bdd55b8a8acbf6b4840ab420eb6a63774bf4593b
Fixed in
  • bdd55b8a8acbf6b4840ab420eb6a63774bf4593b
LinuxLinuxAffected
  • ≥ c428ecd1a21f1457ca3beb4df71b8a079c410e41, < 078deff25f8a849ecd1c3fe17b1e473b1cf44f28
Fixed in
  • 078deff25f8a849ecd1c3fe17b1e473b1cf44f28
LinuxLinuxAffected
  • =4.1
Fixed in–

Description

This vulnerability involves the netlink component and concerns the hashing of the network namespace pointer. No detailed technical information or impact description is provided.

References

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