What is CVE-2022-26943?

CVE-2022-26943 is a high-severity vulnerability in Motorola Mobile Radio, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 8.8/10. Published 2023-10-19.

How severe is CVE-2022-26943?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Motorola Mobile Radio

CVE-2022-26943

The Motorola MTM5000 series firmwares generate TETRA authentication challenges using a PRNG using a tick count register as its sole entropy source. Low boottime entropy and limited re-seeding of the pool renders the authentication challeng…

EPSS: 0.002 (37.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:A/MAC:L/MPR:N/MUI:N/MS:U/MC:H/MI:H/MA:H.

Affected products

Motorola Mobile Radio — versions MTM5000

Weakness classification (CWE)

CWE-338 — Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG)

References

TETRA:BURST (related)

Frequently asked questions

What is CVE-2022-26943?: CVE-2022-26943 is a high-severity vulnerability in Motorola Mobile Radio, classified under Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG). CVSS score: 8.8/10. Published 2023-10-19.
How severe is CVE-2022-26943?: High severity. CVSS v3 base score is 8.8 out of 10.