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CVE-2026-98826VulnerabilityPublished Updated

Microsoft · rtc: ac100: Fix clock provider use-after-free on probe failure

Affects MicrosoftSource GCVE Database

0
Authoritative record:CVE-2026-98826· Medium

Not known to be exploited · fixed in fcf0b58e976e83adf246b014518e49c662b96f5e : update Microsoft when convenient.

Data as of 28 Oct 2026, 08:43 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Patch
Available – fixed in fcf0b58e976e83adf246b014518e49c662b96f5e, 55ca60ba336632349f7c4585d22ba74ae355b7ce, 12bcd20d76703ee2baf52224d287b7fea096b12f +1

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: 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 26 Oct 2026.

What to do

Upgrade Linux to fcf0b58e976e83adf246b014518e49c662b96f5e, 55ca60ba336632349f7c4585d22ba74ae355b7ce, 12bcd20d76703ee2baf52224d287b7fea096b12f or 9cff19ddd7f90c1f572a0f83cfc41de8f8dcbcd8.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ d00a18a42c1483924de086ddfb0efe8da1dba3ac, < fcf0b58e976e83adf246b014518e49c662b96f5e
Fixed in
  • fcf0b58e976e83adf246b014518e49c662b96f5e
LinuxLinuxAffected
  • ≥ d00a18a42c1483924de086ddfb0efe8da1dba3ac, < 55ca60ba336632349f7c4585d22ba74ae355b7ce
Fixed in
  • 55ca60ba336632349f7c4585d22ba74ae355b7ce
LinuxLinuxAffected
  • ≥ d00a18a42c1483924de086ddfb0efe8da1dba3ac, < 12bcd20d76703ee2baf52224d287b7fea096b12f
Fixed in
  • 12bcd20d76703ee2baf52224d287b7fea096b12f
LinuxLinuxAffected
  • ≥ d00a18a42c1483924de086ddfb0efe8da1dba3ac, < 9cff19ddd7f90c1f572a0f83cfc41de8f8dcbcd8
Fixed in
  • 9cff19ddd7f90c1f572a0f83cfc41de8f8dcbcd8
LinuxLinuxAffected
  • =4.9
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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