CVE-2026-66086

9.8Critical

Published 12 Oct 2026 · NVD status: Received

9.8Critical

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-121

The AI triage for this one isn't ready yet. Check back in a few minutes; the full NVD record is below in the meantime.

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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NVD description

In the modem OTA stack, there is a possible stack-based buffer overflow due to improper validation of scheduling information in SIB1 messages. This could lead to remote code execution or denial of service with no additional execution privileges needed.

References

https://www.unisoc.com/en/support/product-security-bulletin/2109454821805424641

Source: nvd.nist.gov/vuln/detail/CVE-2026-66086