Skip to main content
CVE-2026-99191VulnerabilityPublished

calipso_skbuff_setattr() · calipso: keep BIG TCP payload_len

Affects MicrosoftSource GCVE Database

0
Compare
Authoritative record:CVE-2026-99191· Medium

Not known to be exploited · fixed in 8070ed578b6b9134e045627fb745c887a806d46e : 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 8070ed578b6b9134e045627fb745c887a806d46e, 8ee0e03663826a76507048d58466b29321a57656, 1c9fcfca51e3c5cd46dd72a4da74d56eff183513

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 8070ed578b6b9134e045627fb745c887a806d46e, 8ee0e03663826a76507048d58466b29321a57656 or 1c9fcfca51e3c5cd46dd72a4da74d56eff183513.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 81fbc812132cbc72a0f933b19bfd3a829bd946e4, < 8070ed578b6b9134e045627fb745c887a806d46e
Fixed in
  • 8070ed578b6b9134e045627fb745c887a806d46e
LinuxLinuxAffected
  • ≥ 81fbc812132cbc72a0f933b19bfd3a829bd946e4, < 8ee0e03663826a76507048d58466b29321a57656
Fixed in
  • 8ee0e03663826a76507048d58466b29321a57656
LinuxLinuxAffected
  • ≥ 81fbc812132cbc72a0f933b19bfd3a829bd946e4, < 1c9fcfca51e3c5cd46dd72a4da74d56eff183513
Fixed in
  • 1c9fcfca51e3c5cd46dd72a4da74d56eff183513
LinuxLinuxAffected
  • =5.19
Fixed in–

Description

CVE-2026-99191 is a vulnerability related to handling large TCP payload lengths in the calipso_skbuff_setattr() function of Microsoft software version 3.0. No detailed technical or impact information is provided beyond this indication.

References

Community reviews

Loading reviews…