What is CVE-2026-20892?

CVE-2026-20892 is a high-severity vulnerability in Micro Research Ltd. Mr-gm5a-l1, classified under Code Injection. CVSS score: 7.2/10. Published 2026-03-11.

How severe is CVE-2026-20892?

High severity. CVSS v3 base score is 7.2 out of 10.

RCE in Micro Research Ltd. Mr-gm5a-l1

CVE-2026-20892

Code injection vulnerability exists in MR-GM5L-S1 and MR-GM5A-L1, which may allow an attacker with administrative privileges to execute arbitrary commands.

Vulnerability class: RCE (Remote Code Execution)

EPSS: 0.001 (20.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Micro Research Ltd. Mr-gm5a-l1 — versions firmware versions prior to v2.01.04N1_02
Micro Research Ltd. Mr-gm5l-s1 — versions firmware versions prior to v2.01.04N1_02

Weakness classification (CWE)

CWE-94 — Code Injection

References

vultures@jpcert.or.jp
vultures@jpcert.or.jp

Frequently asked questions

What is CVE-2026-20892?: CVE-2026-20892 is a high-severity vulnerability in Micro Research Ltd. Mr-gm5a-l1, classified under Code Injection. CVSS score: 7.2/10. Published 2026-03-11.
How severe is CVE-2026-20892?: High severity. CVSS v3 base score is 7.2 out of 10.