TI-2022-23608 Aliases CVE-2022-47549 GHSA-fpxc-4rrx-f672

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable…

LOW 31CWE-347Published 2022-12-19 · Updated 2025-04-17

Key facts

Attack vector: Physical
Privileges required: None
User interaction: None
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-347.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00417 36th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:trustedfirmware:op-tee::::::::	before 3.20	Vulnerable	OP-TEE

cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:* Versions before 3.20 Vulnerable ·OP-TEE

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-47549
2026-10-03 Alias added: GHSA-fpxc-4rrx-f672

References

Exploit 1

https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on_ARM_TrustZone_through_EM_faults_coredumps_and_UUID_confusion.pdf

Advisory 1

https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6g

TI-2022-22796 OP-TEE Trusted OS vulnerable to Improper Validation of Array Index in the cleanup_shm_refs function CVSS 3.1HIGH 8.8
TI-2026-29072 OP-TEE has a Use-After-Free race in FF-A shared-memory teardown CVSS 3.1HIGH 7.8
TI-2023-21925 OP-TEE double free in shdr_verify_signature CVSS 3.1HIGH 7.4
TI-2026-33359 OP-TEE vulnerable to ECDH private key recovery CVSS 3.1MEDIUM 4.7
TI-2019-16063 Integer overflow in OP-TEE CVSS 3.0CRITICAL 9.8
TI-2019-16062 Integer overflow in OP-TEE CVSS 3.0CRITICAL 9.8

See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences