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CVE-2026-99113VulnerabilityPublished

Microsoft · ksmbd: zero the FS_OBJECT_ID_INFORMATION buffer before filling it in

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-99113· Medium

Not known to be exploited · fixed in 898cb4f2e12a5ddea1b2d821cc642c3100f46da7 : update Microsoft when convenient.

Data as of 29 Oct 2026, 12:03 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in 898cb4f2e12a5ddea1b2d821cc642c3100f46da7, 399aa12450a61a5c73dc77e73f069ece9687c95d, 015fffa48e96ca8d73a627445341ccff86b02251

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 898cb4f2e12a5ddea1b2d821cc642c3100f46da7, 399aa12450a61a5c73dc77e73f069ece9687c95d or 015fffa48e96ca8d73a627445341ccff86b02251.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 898cb4f2e12a5ddea1b2d821cc642c3100f46da7
Fixed in
  • 898cb4f2e12a5ddea1b2d821cc642c3100f46da7
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 399aa12450a61a5c73dc77e73f069ece9687c95d
Fixed in
  • 399aa12450a61a5c73dc77e73f069ece9687c95d
LinuxLinuxAffected
  • ≥ e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, < 015fffa48e96ca8d73a627445341ccff86b02251
Fixed in
  • 015fffa48e96ca8d73a627445341ccff86b02251
LinuxLinuxAffected
  • =5.15
Fixed in–

Description

This vulnerability involves the ksmbd component where the FS_OBJECT_ID_INFORMATION buffer is not zeroed before being filled. This could potentially lead to unintended data disclosure or memory issues. The affected version is 3.0. No CVSS score or detailed impact information is provided.

References

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