HOMEVULNERABILITIESCVE-2022-26942
HIGH

CVE-2022-26942

CWE-822Published: October 19, 2023· Updated: Jun 17, 2026

8.2
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2022-26942 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.2.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeChanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

Affected Vendors & Products

motorola4 product(s)
mtm5500 firmwaremtm5500mtm5400 firmwaremtm5400
Source: NVD CPE · 4 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
External links open in a new tab. Always verify in a controlled environment before use.

All References (2)

https://tetraburst.com/Technical Description
https://tetraburst.com/Technical Description

Quick Facts

CVE IDCVE-2022-26942
CVSS Score8.2 / 10
SeverityHIGH
WeaknessCWE-822
CISA KEVNo
Affected1 vendor(s)
PublishedOct 19, 2023

Related CVEs (CWE-822)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2022-26942 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.