CVE-2022-46152 — OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted

OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vulnerability. The function `cleanup_shm_refs()` is called by both `entry_invoke_command()` and `entry_o

01What is this vulnerability?

OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vulnerability. The function `cleanup_shm_refs()` is called by both `entry_invoke_command()` and `entry_open_session()`. The commands `OPTEE_MSG_CMD_OPEN_SESSION` and `OPTEE_MSG_CMD_INVOKE_COMMAND` can be executed from the…

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2022-11-29T17:15:11.453
• Last modified: 2026-06-05T20:23:06.630

09References

• github.com — https://github.com/OP-TEE/optee_os/blob/c2d449482de098f1c894b94f338440e5a327813d…
• github.com — https://github.com/OP-TEE/optee_os/commit/728616b28df659cf0bdde6e58a471f6ef25d02…
• github.com — https://github.com/OP-TEE/optee_os/security/advisories/GHSA-65w8-6mrg-52g7
• nvd.nist.gov — https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:H/UI:N/…
• github.com — https://github.com/OP-TEE/optee_os/blob/c2d449482de098f1c894b94f338440e5a327813d…
• github.com — https://github.com/OP-TEE/optee_os/commit/728616b28df659cf0bdde6e58a471f6ef25d02…
• github.com — https://github.com/OP-TEE/optee_os/security/advisories/GHSA-65w8-6mrg-52g7
• nvd.nist.gov — https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:H/UI:N/…