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CVE-2022-4254

28
FAUCET Score

CVE-2022-4254 describes a critical vulnerability in sssd's libsss_certmap, where improper sanitization of certificate data used in LDAP filters can lead to remote code execution. This flaw, affecting Fedora Project and Red Hat products, carries a high CVSS score of 8.8, indicating a network-exploitable vulnerability with low attack complexity that can result in complete compromise of confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.15.3, < 2.3.1CPE matchmatch criteria
cpe:2.3:a:fedoraproject:sssd:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_for_power_big_endian:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 53rd percentile among its peer group of 17,822 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: sssd-0:1.16.5-10.el7_9.15
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Advanced Update SupportFixed in: sssd-0:2.2.3-20.el8_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceFixed in: sssd-0:2.2.3-20.el8_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsFixed in: sssd-0:2.2.3-20.el8_2.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsFixed in: sssd-0:2.2.0-19.el8_1.3
View patch

Vendor Advisories (1)

redhatCVE-2022-4254Important

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

Jan 24, 2023

References

access.redhat.com / security/cve/CVE-2022-4254
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingPatchThird Party Advisory
github.com / SSSD/sssd/commit/a2b9a84460429181f2a4fa7e2bb5ab49fd561274
PatchThird Party Advisory
github.com / SSSD/sssd/issues/5135
ExploitIssue TrackingPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2023/05/msg00028.html