CVE-2026-98893

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Validate SENSOR_UPDATE payload size SENSOR_UPDATE carries one or more sensor readings after the fixed notification header. The parser derives the expected reading count from the sensor description, but it did not verify that the received payload contains those entries before parsing them. Reject truncated update notifications before reading the variable array.

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EPSS — Exploit Prediction

0.0022

Probability of exploitation

0.13%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/1bbe431fc59704d012660647516f6f94ddd82564 https://git.kernel.org/stable/c/32bc5496b48174dbca1f187f710955ee4d9527a1 https://git.kernel.org/stable/c/767789a58ae0d65ec3028e5b5b4da82210355d00 https://git.kernel.org/stable/c/87a72e75f7560ea45cd28870194eaa153dd19e75 https://git.kernel.org/stable/c/c148ff2f5a168e0bc41d801efca6ee35a376cfcb https://git.kernel.org/stable/c/e543d60f966a5f5c92298720c2fd1810f85a6be3

Frequently Asked Questions

What is CVE-2026-98893? +

In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Validate SENSOR_UPDATE payload size SENSOR_UPDATE carries one or more sensor readings after the fixed notification header. The parser derives the expected reading count from the sensor description, but it did not verify that the received payload contains those entries before parsing them. Reject truncated update notifications before reading the variable array.

How do I check if I'm vulnerable to CVE-2026-98893? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.