Multiple missing pointer validation checks in trusted execution module in Motorola MTM5000
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-822 and the CVSS impact.
Summary
The Motorola MTM5000 series firmwares lack pointer validation on arguments passed to trusted execution environment (TEE) modules. Two modules are used, one responsible for KVL key management and the other for TETRA cryptographic functionality. In both modules, an adversary with non-secure supervisor level code execution can exploit the issue in order to gain secure supervisor code execution within the TEE. This constitutes a full break of the TEE module, exposing the device key as well as any TETRA cryptographic keys and the confidential TETRA cryptographic primitives.
Why it matters now
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 |
|---|---|---|---|---|---|
| Motorola | Mobile Radio | MTM5000 | — | No fix listed | CNA |
- Mobile Radio VendorMotorola Affected MTM5000 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:motorola:mtm5500_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Motorola |
| cpe:2.3:h:motorola:mtm5500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Motorola |
| cpe:2.3:o:motorola:mtm5400_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Motorola |
| cpe:2.3:h:motorola:mtm5400:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Motorola |
- cpe:2.3:o:motorola:mtm5500_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Motorola
- cpe:2.3:h:motorola:mtm5500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Motorola
- cpe:2.3:o:motorola:mtm5400_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Motorola
- cpe:2.3:h:motorola:mtm5400:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Motorola
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2022-26942
- 2026-10-03 Alias added: GHSA-w833-px7j-q64c
References
Other 1
More Motorola Mtm5400 Firmware vulnerabilities
- TI-2022-10172 Format string vulnerability in AT+CTGL command in Motorola MTM5000 CVSS 3.1CRITICAL 9.6
- TI-2022-10174 Weak PRNG entropy source used for authentication challenge generation in Motorola MTM5000 CVSS 3.1HIGH 8.8
- TI-2022-10696 Unconfigured memory protection modules in Motorola MTM5000 CVSS 3.1HIGH 8.2
Sources
- CVE-2022-26942 · CVE Program
- CVE-2022-26942 · NVD
- FIRST EPSS
- GHSA-w833-px7j-q64c · GitHub Advisory Database · CC BY 4.0
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