CVE-2022-4318

HIGHNVD 7.87.8—

7.8

A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 12.9%
KEV: Not listed

Published

September 25, 2023

Last Modified

November 21, 2024

References (8)

secalert@redhathttps://access.redhat.com/errata/RHSA-2023:1033
secalert@redhathttps://access.redhat.com/errata/RHSA-2023:1503
secalert@redhathttps://access.redhat.com/security/cve/CVE-2022-4318
secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2152703
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:1033
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2023:1503
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2022-4318
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2152703

Patch Availability(2)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	cri-o-0:1.24.4-10.rhaos4.11.git1ed5ac5.el8	2023-04-04	redhat
redhat	cri-o-0:1.25.2-10.rhaos4.12.git0a083f9.el8	2023-03-07	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)

Go(1)

Package	Vulnerable range	Fixed in	Dependents
github.com/cri-o/cri-o	—	1.26.0	—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-27 13:39 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 13:43 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 17:10 UTCEG score recompute
2026-05-24 17:10 UTCVendor advisory

Frequently asked(5)

What is CVE-2022-4318?

CVE-2022-4318 is a high vulnerability published on September 25, 2023. A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.

When was CVE-2022-4318 disclosed?

CVE-2022-4318 was first published in the National Vulnerability Database on September 25, 2023, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-4318 actively exploited?

CVE-2022-4318 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-4318?

CVE-2022-4318 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2022-4318?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-4318, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-4318

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