How severe is CVE-2022-4126?

CVE-2022-4126 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-4126 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-2022-4126?

CVE-2022-4126 affects Abb Rccmd. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-4126?

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-2022-4126 published?

CVE-2022-4126 was published on 2023-03-27 and last updated on 2026-06-17.

CVE-2022-4126

CVE-2022-4126 is a critical-severity vulnerability in Abb Rccmd with a CVSS 3.x base score of 9.6. 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Abb Rccmd
Published: 2023-03-27
Last modified: 2026-06-17

Description

Use of Default Password vulnerability in ABB RCCMD on Windows, Linux, MacOS allows Try Common or Default Usernames and Passwords.This issue affects RCCMD: before 4.40 230207.

Frequently asked questions

What is CVE-2022-4126?: Use of Default Password vulnerability in ABB RCCMD on Windows, Linux, MacOS allows Try Common or Default Usernames and Passwords.This issue affects RCCMD: before 4.40 230207.
How severe is CVE-2022-4126?: CVE-2022-4126 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-4126 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-2022-4126?: CVE-2022-4126 affects Abb Rccmd. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-4126?: 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-2022-4126 published?: CVE-2022-4126 was published on 2023-03-27 and last updated on 2026-06-17.

References

https://search.abb.com/library/Download.aspx?DocumentID=2CMT006099_EN&LanguageCode=en&DocumentPartId=&Action=Launch

Affected products (1)

cpe:2.3:a:abb:rccmd:*:*:*:*:*:*:*:*

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