CVE-2022-43977: An issue was discovered on GE Grid Solutions MS3000 devices before 3.7.6.25p0_3.2.2.17p0_4.7p0

Q: How do I fix CVE-2022-43977?

ms 3000 firmware: upgrade to 3.7.6.25p0_3.2.2.17p0_4.7p0. Exact commands for each OS are on this page.

Q: Is CVE-2022-43977 being exploited?

CVE-2022-43977 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-43977 affect?

CVE-2022-43977 affects ms 3000 firmware. Severity is critical (CVSS 9.8). 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.

Q: How urgent is CVE-2022-43977?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2022-43977 is a critical-severity flaw (CVSS 9.8) affecting ms 3000 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-284
Published	2023-01-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ge

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-17 21:15 UTCPublished CVE record published
2026-06-17 05:07 UTCUpdated Record last modified

ge ms 3000 firmware UPGRADE

Affected: < 3.7.6.25p0_3.2.2.17p0_4.7p0

Fixed in: 3.7.6.25p0_3.2.2.17p0_4.7p0

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-43977?

ms 3000 firmware: upgrade to 3.7.6.25p0_3.2.2.17p0_4.7p0. Exact commands for each OS are on this page.

Is CVE-2022-43977 being exploited?

CVE-2022-43977 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-43977 affect?

CVE-2022-43977 affects ms 3000 firmware. Severity is critical (CVSS 9.8). 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 urgent is CVE-2022-43977?

Priority 52/100. Critical severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-43976 CRITICAL 9.8 UPGRADE An issue was discovered in FC46-WebBridge on GE Grid Solutions MS3000 devices before 3.7.6.25p0_3.2.2.17p0_4.7
CVE-2022-43975 HIGH 7.5 UPGRADE An issue was discovered in FC46-WebBridge on GE Grid Solutions MS3000 devices before 3.7.6.25p0_3.2.2.17p0_4.7

References

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