VULNERABILITY INTELLIGENCE

CVE-2026-77237

CVSS score8.2 HIGH
EPSS probability0.18%
CISA KEVNot currently listed
Published2026-08-21
Last modified2026-10-14
CVSS vectorCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

Description

Missing queue-set type validation in xQueueAddToSet() in the FreeRTOS-Kernel before 11.3.1 might allow an unprivileged task on MPU-enabled ports with configUSE_QUEUE_SETS=1 to read privileged kernel memory. To remediate this issue, users should upgrade to version 11.3.1 or later.

Weakness classification

  • CWE-125: Out-of-bounds Read
  • CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

Primary references