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CVE-2026-90154VulnerabilityPublished Updated

Microsoft · ksmbd: scope session state changes to bound connections

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-90154· Medium

Not known to be exploited · fixed in c50e628122aed077695669e25b842e778511a43d : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:19 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in c50e628122aed077695669e25b842e778511a43d, 0875872718b98e8530fbc634e5aa7dbd3253b80d, 3deefd5fb1368e2577144b0961b1a5df26b587d1 +2

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 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
  • ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < c50e628122aed077695669e25b842e778511a43d
Fixed in
  • c50e628122aed077695669e25b842e778511a43d
LinuxLinuxAffected
  • ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 0875872718b98e8530fbc634e5aa7dbd3253b80d
Fixed in
  • 0875872718b98e8530fbc634e5aa7dbd3253b80d
LinuxLinuxAffected
  • ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 3deefd5fb1368e2577144b0961b1a5df26b587d1
Fixed in
  • 3deefd5fb1368e2577144b0961b1a5df26b587d1
LinuxLinuxAffected
  • ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 3d66f3ec3c69fa242939a9f9e6815df33390b1bb
Fixed in
  • 3d66f3ec3c69fa242939a9f9e6815df33390b1bb
LinuxLinuxAffected
  • ≥ f5a544e3bab78142207e0242d22442db85ba1eff, < 1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b
Fixed in
  • 1ff0e41afbe73240a7d7b96d4e8e86d0aaf0fe0b
LinuxLinuxAffected
  • =5.15
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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