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CVE-2026-93093VulnerabilityPublished Updated

Microsoft · firmware: arm_scmi: Publish channel state before callbacks

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-93093· Medium

Not known to be exploited · fixed in a1bc587568a4e373db76261dc9561dfc3653917f : 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

Thin evidence

One scorer or none
Patch
Available – fixed in a1bc587568a4e373db76261dc9561dfc3653917f, 0314900dcdde044af0208fed212035dbfaa55843, 50e38091a657ad81385e2aea7e2575e17ac23d79 +3

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
  • ≥ 5c8a47a5a91d4d6e185f758d61997613d9c5d6ac, < a1bc587568a4e373db76261dc9561dfc3653917f
Fixed in
  • a1bc587568a4e373db76261dc9561dfc3653917f
LinuxLinuxAffected
  • ≥ 5c8a47a5a91d4d6e185f758d61997613d9c5d6ac, < 0314900dcdde044af0208fed212035dbfaa55843
Fixed in
  • 0314900dcdde044af0208fed212035dbfaa55843
LinuxLinuxAffected
  • ≥ 5c8a47a5a91d4d6e185f758d61997613d9c5d6ac, < 50e38091a657ad81385e2aea7e2575e17ac23d79
Fixed in
  • 50e38091a657ad81385e2aea7e2575e17ac23d79
LinuxLinuxAffected
  • ≥ 5c8a47a5a91d4d6e185f758d61997613d9c5d6ac, < 9d349c7b2392b1196e10421421ea9a09fcc5d3cc
Fixed in
  • 9d349c7b2392b1196e10421421ea9a09fcc5d3cc
LinuxLinuxAffected
  • ≥ 5c8a47a5a91d4d6e185f758d61997613d9c5d6ac, < 6f3f532531e4a27d28a2240719d1b05ac11766c6
Fixed in
  • 6f3f532531e4a27d28a2240719d1b05ac11766c6
LinuxLinuxAffected
  • ≥ 5c8a47a5a91d4d6e185f758d61997613d9c5d6ac, < 1bea027f7ef6fb889628b16c568a5f7c07a51b30
Fixed in
  • 1bea027f7ef6fb889628b16c568a5f7c07a51b30

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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