CVE-2026-71968: falha de alta gravidade em OP-TEE optee_os
OP-TEE OS 4.10.0 Use-After-Free via Trusted Application Loader TA_FLAG_CONCURRENT
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.4epss 0.1%
OP-TEE OS through 4.10.0, fixed in commit 8794043, contains a use-after-free vulnerability in the Trusted Application loader that allows attackers with the ability to load a signed Trusted Application to corrupt secure-world kernel memory by setting the TA_FLAG_CONCURRENT flag in a user TA signed header. 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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Produtos afetados
OP-TEE · optee_osCVEs relacionadas — OP-TEE optee_os
No mesmo produto, das mais perigosas para as menos.
CVE-2022-46152HIGHOP-TEE Trusted OS vulnerable to Improper Validation of Array Index in the cleanup_shm_refs functionEPSS 0.5%CVE-2026-33662HIGHOP-TEE: RSASSA EMSA- PKCS1-v1_5 underflow in emsa_pkcs1_v1_5_encode()EPSS 0.4%CVE-2023-41325HIGHOP-TEE double free in shdr_verify_signatureEPSS 0.4%CVE-2026-53763LOWOP-TEE has AES-GCM 32-bit integer overflow in length counters that breaks authentication guaranteeEPSS 0.2%CVE-2026-40290HIGHOP-TEE has a Use-After-Free race in FF-A shared-memory teardownEPSS 0.2%CVE-2026-33317HIGHOP-TEE: PKCS#11 TA out-of-bounds read and memory disclosureEPSS 0.2%