SEPTEMBER 1, 2026
Live Feed
Back to database
Case File

CVE-2026-77237

MEDIUM · CVSS 6.5 EPSS 0.13% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-21 · Last synced 2026-09-01

CyberRota Analysis

AI-Generated

The vulnerability arises from inadequate queue-set type validation in the xQueueAddToSet() function of FreeRTOS-Kernel versions prior to 11.3.1, potentially allowing unprivileged tasks on MPU-enabled ports to access privileged kernel memory. This could lead to unauthorized data exposure and compromise system integrity. Users operating on affected versions, particularly those utilizing queue sets, should prioritize upgrading to version 11.3.1 or later to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-77237
Severity
MEDIUM
CVSS
6.5
EPSS
0.13%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)