CVEvulnerability

CVE-2026-77235

8.3 HIGH Published 2026-08-21 Modified 2026-10-14 Official page ↗

Status: Analyzed
Published: 2026-08-21
Last modified: 2026-10-14
Assigner: ff89ba41-3aa1-4d27-914a-91399e9639e5
CVSS 4.0 (ff89ba41-3aa1-4d27-914a-91399e9639e5): 8.3 HIGH — CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1 (ff89ba41-3aa1-4d27-914a-91399e9639e5): 7.3 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
Weaknesses: CWE-416

Description

Missing privilege verification in the secure context cleanup handler in FreeRTOS-Kernel before 11.3.1 might allow local users to cause a use-after-free condition in secure-world memory via the SVC handler for secure context deallocation. To remediate this issue, users should upgrade to version 11.3.1 or later.

Affected configurations

• amazon freertos (>= 10.2.0 < 11.3.1)

Weakness · CWE (1)

CWE-416 Use After Free weakness

References

https://aws.amazon.com/security/security-bulletins/2026-086-aws/ Vendor Advisory
https://github.com/FreeRTOS/FreeRTOS-Kernel/releases/tag/V11.3.1 Release Notes
https://github.com/FreeRTOS/FreeRTOS-Kernel/security/advisories/GHSA-55pf-q87x-c58c Vendor Advisory

CVE-2026-77235

Description

Affected configurations

Related

Weakness · CWE (1)

References