Is CVE-2022-4254 in the CISA KEV catalog?

No. CVE-2022-4254 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-4254?

CVE-2022-4254 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2022-4254?

CVE-2022-4254 has an EPSS score of 0.95% (57th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-4254?

Upgrade sssd on debian 11 to 2.3.1-1 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2022-4254

HIGH

8.8

CVSS v3

NVD

Description

sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters

CWE-90

How to fix

Remediation Available

sssdDebian

Fixed in:2.3.1-1CVE-2022-4254

sssdUbuntu

Fixed in:2.2.3-3ubuntu0.11USN-6156-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

0.95%probability of exploitation in 30 days

57thpercentile

Moderate risk: more likely to be exploited than 57% of all known CVEs.

References

Patch3

Third-Party Advisory1

access.redhat.com

Other references1

lists.debian.org

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-03-27.