CVE Explorer
CVE-2026-44362
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 3.20.0 and prior to version 4.11.0, a vulnerability in OP-TEE’s subkey rollback protection allows the use of revoked or older subkey versions because the system fails to propagate versioning data during the Trusted Application (TA) loading process. In `core/crypto/signed_hdr.c`, the function `shdr_load_pub_key()` par
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"optee_os","vendor":"OP-TEE","versions":[{"status":"affected","version":">= 3.20.0, < 4.11.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:42410b00a956d128af97eef331467fa69a76c0b2c220b80e0adcd073dd3a1a87 · sha256:c5685a68181a2e80… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:42410b00a956d128af97eef331467fa69a76c0b2c220b80e0adcd073dd3a1a87 · sha256:c5685a68181a2e80… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:42410b00a956d128af97eef331467fa69a76c0b2c220b80e0adcd073dd3a1a87 · sha256:c5685a68181a2e80… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/OP-TEE/optee_os/security/advisories/GHSA-fhcg-pp56-8v75","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OP-TEE/optee_os/security/advisories/GHSA-fhcg-pp56-8v75"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:42410b00a956d128af97eef331467fa69a76c0b2c220b80e0adcd073dd3a1a87 · sha256:c5685a68181a2e80… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.