Is CVE-2021-22253 in the CISA KEV catalog?

No. CVE-2021-22253 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22253?

CVE-2021-22253 has a CVSS v3 base score of 4.9 (MEDIUM).

What is the EPSS score for CVE-2021-22253?

CVE-2021-22253 has an EPSS score of 0.82% (53th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22253?

Upgrade gitlab to 14.1.2 or later.

CVE & CISA-KEV Catalog

CVE-2021-22253

MEDIUM

4.9

CVSS v3

NVD

Description

Improper authorization in GitLab EE affecting all versions since 13.4 allowed a user who previously had the necessary access to trigger deployments to protected environments under specific conditions after the access has been removed

CWE-863Incorrect Authorization

How to fix

Remediation Available

gitlabNVD

Affected:>= 14.1.0, < 14.1.2Fixed in:14.1.2CVE-2021-22253derived from NVD

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityLow

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

Exploit Intelligence

0.82%probability of exploitation in 30 days

53rdpercentile

Moderate risk: more likely to be exploited than 53% of all known CVEs.

References

Vendor Advisory1

gitlab.com

Third-Party Advisory1

hackerone.com

Other references1

gitlab.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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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 2024-11-21.