How severe is CVE-2022-43977?

CVE-2022-43977 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-43977 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43977?

CVE-2022-43977 affects Ge Ms 3000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-43977?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2022-43977 published?

CVE-2022-43977 was published on 2023-01-17 and last updated on 2026-06-17.

CVE-2022-43977

CVE-2022-43977 is a critical-severity vulnerability in Ge Ms 3000 Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Ge Ms 3000 Firmware
Published: 2023-01-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2022-43977?: CVE-2022-43977 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-43977 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43977?: CVE-2022-43977 affects Ge Ms 3000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-43977?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-43977 published?: CVE-2022-43977 was published on 2023-01-17 and last updated on 2026-06-17.

References

https://wid.cert-bund.de/.well-known/csaf/white/2022/bsi-2022-0005.json

Affected products (1)

cpe:2.3:o:ge:ms_3000_firmware:*:*:*:*:*:*:*:*

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CVE-2022-43976 — Critical (CVSS 9.8): An issue was discovered in FC46-WebBridge on GE Grid Solutions MS3000 devices before 3.7.6.25p0_3.2.2.17p0_4.7p0.…
CVE-2022-43975 — High (CVSS 7.5): An issue was discovered in FC46-WebBridge on GE Grid Solutions MS3000 devices before 3.7.6.25p0_3.2.2.17p0_4.7p0. A…

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