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CVE-2026-98893VulnerabilityPublished Updated

Microsoft · firmware: arm_scmi: Validate SENSOR_UPDATE payload size

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-98893· Medium

Not known to be exploited · fixed in e543d60f966a5f5c92298720c2fd1810f85a6be3 : update Microsoft when convenient.

Data as of 29 Oct 2026, 10:37 UTC

Severity
Medium

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
EPSS
0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in e543d60f966a5f5c92298720c2fd1810f85a6be3, c148ff2f5a168e0bc41d801efca6ee35a376cfcb, 767789a58ae0d65ec3028e5b5b4da82210355d00 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 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 to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ e3811190acf85c63518fbddaa28bcbfab2baa58d, < e543d60f966a5f5c92298720c2fd1810f85a6be3
Fixed in
  • e543d60f966a5f5c92298720c2fd1810f85a6be3
LinuxLinuxAffected
  • ≥ e3811190acf85c63518fbddaa28bcbfab2baa58d, < c148ff2f5a168e0bc41d801efca6ee35a376cfcb
Fixed in
  • c148ff2f5a168e0bc41d801efca6ee35a376cfcb
LinuxLinuxAffected
  • ≥ e3811190acf85c63518fbddaa28bcbfab2baa58d, < 767789a58ae0d65ec3028e5b5b4da82210355d00
Fixed in
  • 767789a58ae0d65ec3028e5b5b4da82210355d00
LinuxLinuxAffected
  • ≥ e3811190acf85c63518fbddaa28bcbfab2baa58d, < 87a72e75f7560ea45cd28870194eaa153dd19e75
Fixed in
  • 87a72e75f7560ea45cd28870194eaa153dd19e75
LinuxLinuxAffected
  • ≥ e3811190acf85c63518fbddaa28bcbfab2baa58d, < 32bc5496b48174dbca1f187f710955ee4d9527a1
Fixed in
  • 32bc5496b48174dbca1f187f710955ee4d9527a1
LinuxLinuxAffected
  • ≥ e3811190acf85c63518fbddaa28bcbfab2baa58d, < 1bbe431fc59704d012660647516f6f94ddd82564
Fixed in
  • 1bbe431fc59704d012660647516f6f94ddd82564

Description

This vulnerability concerns the ARM SCMI firmware component, specifically the validation of the SENSOR_UPDATE payload size. The advisory provides no detailed technical information or impact description. The affected versions are Microsoft products version 3.0 and 4.0. No CVSS score or exploit information is available.

References

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