How severe is CVE-2022-47549?

CVE-2022-47549 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-47549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-47549?

CVE-2022-47549 affects Trustedfirmware Op-tee. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-47549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-47549 published?

CVE-2022-47549 was published on 2022-12-19 and last updated on 2026-06-17.

CVE-2022-47549

CVE-2022-47549 is a medium-severity vulnerability in Trustedfirmware Op-tee with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-347.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Trustedfirmware Op-tee
Published: 2022-12-19
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2022-47549?: 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.
How severe is CVE-2022-47549?: CVE-2022-47549 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over physical access with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-47549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-47549?: CVE-2022-47549 affects Trustedfirmware Op-tee. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-47549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-47549 published?: CVE-2022-47549 was published on 2022-12-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*

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