CVE-2022-47549

Name: CVE-2022-47549
Creator: NVD / NIST
Published: 2022-12-19T09:15:09.637+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.4/10EPSS 0.40%

Last modified Jun 17, 2026

CVE-2022-47549 is a medium-severity vulnerability rated 6.4/10 on the CVSS scale. 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.. EPSS estimates a 0.40% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.4/10

CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.40%

31.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Trustedfirmware	Op-Tee	< 3.20

References

https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6gThird Party Advisory
https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on_ARM_TrustZone_through_EM_faults_coredumps_and_UUID_confusion.pdfExploit, Technical Description, Vendor Advisory
https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6gThird Party Advisory
https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on_ARM_TrustZone_through_EM_faults_coredumps_and_UUID_confusion.pdfExploit, Technical Description, Vendor Advisory

Timeline

Published: Dec 19, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-47549?

How severe is CVE-2022-47549?

CVE-2022-47549 has a CVSS score of 6.4/10 (MEDIUM severity). The EPSS model estimates a 0.40% probability of exploitation in the next 30 days.

How do I fix CVE-2022-47549?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-47549?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST