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CVE-2026-99211VulnerabilityPublished

Microsoft · netlink: reset skb headers before unicast and multicast filtering

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99211· Medium

Not known to be exploited · fixed in 06791594274f87c29f1a9f1961d700272716a49d : update Microsoft when convenient.

Data as of 29 Oct 2026, 11:32 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 06791594274f87c29f1a9f1961d700272716a49d, 06935da5de83aa8b98841563894857e7d2f80e47, 8bf659bd54e1f00e34cf5244b1d289c506fa47c0

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 06791594274f87c29f1a9f1961d700272716a49d, 06935da5de83aa8b98841563894857e7d2f80e47 or 8bf659bd54e1f00e34cf5244b1d289c506fa47c0.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ b1153f29ee07dc1a788964409255a4b4fae50b98, < 06791594274f87c29f1a9f1961d700272716a49d
Fixed in
  • 06791594274f87c29f1a9f1961d700272716a49d
LinuxLinuxAffected
  • ≥ b1153f29ee07dc1a788964409255a4b4fae50b98, < 06935da5de83aa8b98841563894857e7d2f80e47
Fixed in
  • 06935da5de83aa8b98841563894857e7d2f80e47
LinuxLinuxAffected
  • ≥ b1153f29ee07dc1a788964409255a4b4fae50b98, < 8bf659bd54e1f00e34cf5244b1d289c506fa47c0
Fixed in
  • 8bf659bd54e1f00e34cf5244b1d289c506fa47c0
LinuxLinuxAffected
  • =2.6.26
Fixed in–
Red Hatredhat/kernelpkg:rpm/redhat/kernelOther threatsAffected
  • =2.6.26
Fixed in–

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

Description

This vulnerability involves the netlink component where skb headers are not properly reset before unicast and multicast filtering. The issue is identified in Microsoft product version 3.0. No detailed impact or exploitation information is provided.

References

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