PatchTheCVECVE-2026-45702: OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on
CVE-2026-45702 is a medium-severity flaw (CVSS 4.4) affecting op-tee. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 4.3.0 and prior to version 4.11.0, a type confusion vulnerability exists in OP-TEE OS when processing an FFA_MEM_SHARE request from the normal world. This only applies when OP-TEE is configured as an SPMC for S-EL0 SPs, that is, with `CFG_CORE_SEL1_SPMC=y` and `CFG_SE
Why this priority
- Public exploit reference
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.4 (Medium) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | High |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 95%) |
| CISA exploited list | No |
| Weakness | CWE-843 |
| Published | 2026-06-03 |
| Last modified | 2026-07-22 |
Last updated 2026-07-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-45702?
op-tee: upgrade to newer than 4.10.0. Exact commands for each OS are on this page.
Is CVE-2026-45702 being exploited?
CVE-2026-45702 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-45702 affect?
CVE-2026-45702 affects op-tee. Severity is medium (CVSS 4.4). 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 4.3.0 and prior to version 4.11.0, a type confusion vulner
How urgent is CVE-2026-45702?
Priority 27/100. Public exploit reference; On your watchlist
Software pages
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