CVE-2026-77237
Low
No strong exploitation signal.
CVSS base
6.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS — probability of exploitation (30 days)
0.1%
3.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-125
Published 2026-08-21 · modified 2026-08-25
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | H | High |
| Integrity | N | None |
| Availability | N | None |
Timeline
- 2026-08-21 — Published (NVD)
- 2026-08-25 — Last modified (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.