Get real-time updates on Telegram
CVE-2026-71968: optee_os 0 through 4.10.0
CVE-2026-71968. CVSS 3.1 base score 6.7 (MEDIUM, Vendor/CNA). EPSS 0.00136 (percentile 0.02725), scored 22-Oct-2026.
Affected technology
optee_os · 0 through 4.10.0
OP-TEE
Description’s affected range: through 4.10.0, fixed in commit 8794043,
Component: Not specified by the source
Attack conditions (Vendor/CNA, CVSS 4.0): Local · High privileges required · No user interaction required
What an attacker can do
Attackers can cause two concurrent sessions to operate on the same shared context without locking, corrupting the uctx->vm_info.regions list during memref parameter mapping and unmapping to free vm_region nodes still in use, resulting in a use-after-free in S-EL1 secure-world kernel memory. Vendor/CNA’s CVSS 4.0 assessment (base score 8.4/10) rates confidentiality, integrity and availability impact as high.
- CWE
- CWE-362, CWE-416
- CCR priority
- 26.8 /100 (P4)
- CVSS 3.1
- 6.7 /10 · CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H · Vendor/CNA
- EPSS
- 0.00136 · percentile 0.02725 · 2026-10-22
- KEV
- no
Provenance
- NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-71968.html