CVE-2022-47549

low-risk
Published 2022-12-19

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allows a physically proximate adversary to bypass signature verification and install malicious trusted applications via electromagnetic fault injections.

Do I need to act?

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0.07% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.4/10 Medium
PHYSICAL / HIGH complexity

Affected Products (1)

Op-Tee

Affected Vendors

Linaro

References (4)

Third Party Advisory https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6g
Exploit https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on...
Third Party Advisory https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6g
Exploit https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on...
22
/ 100
low-risk
Severity 17/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal