CVE-2026-98893: Linux kernel · firmware: arm_scmi: Validate SENSOR_UPDATE payload size
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in e543d60f966a5f5c92298720c2fd1810f85a6be3 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:07 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in e543d60f966a5f5c92298720c2fd1810f85a6be3, c148ff2f5a168e0bc41d801efca6ee35a376cfcb, 767789a58ae0d65ec3028e5b5b4da82210355d00 +3
Exploitation evidence
Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel. The vulnerability is resolved by validating the SENSOR_UPDATE payload size before parsing. Users should update to a Linux kernel version that includes the fix identified by the provided commit hashes.
Description
A vulnerability in the Linux kernel's arm_scmi firmware component was fixed by validating the SENSOR_UPDATE payload size. The flaw involved the parser not verifying that the payload contained the expected number of sensor readings before parsing, potentially allowing processing of truncated update notifications.
References
- git.kernel.org/stable/c/e543d60f966a5f5c92298720c2fd1810f85a6be3 (opens in a new tab)
- git.kernel.org/stable/c/87a72e75f7560ea45cd28870194eaa153dd19e75 (opens in a new tab)
- git.kernel.org/stable/c/1bbe431fc59704d012660647516f6f94ddd82564 (opens in a new tab)
- git.kernel.org/stable/c/c148ff2f5a168e0bc41d801efca6ee35a376cfcb (opens in a new tab)
- git.kernel.org/stable/c/767789a58ae0d65ec3028e5b5b4da82210355d00 (opens in a new tab)
- git.kernel.org/stable/c/32bc5496b48174dbca1f187f710955ee4d9527a1 (opens in a new tab)