CVE Explorer
CVE-2026-41516
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 4.5.0 and prior to version 4.11.0, the RSA PKCS#1 v1.5 decryption implementation in the Hisilicon HPRE crypto driver uses non-constant-time `memcmp()` for label hash verification and has multiple distinguishable error paths. This creates a Bleichenbacher-style padding oracle that allows an attacker to recover RSA PKC
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":">= 4.5.0, < 4.11.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d129267c2a9edf9b40c2d19a39ccc6e46192dc32dd24f4a57bb8b461687edbb5 · sha256:fa08b7b2d67ff068… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":2.5,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d129267c2a9edf9b40c2d19a39ccc6e46192dc32dd24f4a57bb8b461687edbb5 · sha256:fa08b7b2d67ff068… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-208","description":"CWE-208: Observable Timing Discrepancy","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d129267c2a9edf9b40c2d19a39ccc6e46192dc32dd24f4a57bb8b461687edbb5 · sha256:fa08b7b2d67ff068… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/OP-TEE/optee_os/security/advisories/GHSA-wxp6-8wwr-h4gf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/OP-TEE/optee_os/security/advisories/GHSA-wxp6-8wwr-h4gf"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d129267c2a9edf9b40c2d19a39ccc6e46192dc32dd24f4a57bb8b461687edbb5 · sha256:fa08b7b2d67ff068… · /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.