What is CVE-2022-43977?

CVE-2022-43977 is a critical-severity vulnerability in Ge Ms 3000, classified under Improper Access Control. CVSS score: 9.8/10. Published 2023-01-17.

How severe is CVE-2022-43977?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Ge Ms 3000

CVE-2022-43977

An issue was discovered on GE Grid Solutions MS3000 devices before 3.7.6.25p0_3.2.2.17p0_4.7p0. The debug port accessible via TCP (a qconn service) lacks access control.

Published 2023-01-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.006 (47.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 47.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

wid.cert-bund.de/.well-known/csaf/white/2022/bsi-2022-0005.json (Third Party Advisory)

Frequently asked questions

What is CVE-2022-43977?: CVE-2022-43977 is a critical-severity vulnerability in Ge Ms 3000, classified under Improper Access Control. CVSS score: 9.8/10. Published 2023-01-17.
How severe is CVE-2022-43977?: Critical severity. CVSS v3 base score is 9.8 out of 10.