Is CVE-2021-21438 in the CISA KEV catalog?

No. CVE-2021-21438 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-21438?

CVE-2021-21438 has a CVSS v3 base score of 3.5 (LOW).

What is the EPSS score for CVE-2021-21438?

CVE-2021-21438 has an EPSS score of 0.63% (46th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-21438?

Upgrade faq to 6.0.29 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-21438

LOW

3.5

CVSS v3

NVD

Description

Agents are able to see linked FAQ articles without permissions (defined in FAQ Category). This issue affects: FAQ version 6.0.29 and prior versions, OTRS version 7.0.24 and prior versions.

CWE-264Permissions, Privileges, and Access Controls CWE-276

How to fix

Remediation Available

faqNVD

Affected:>= 6.0.0, < 6.0.29Fixed in:6.0.29CVE-2021-21438derived from NVD

otrsNVD

Affected:>= 7.0.0, < 7.0.24Fixed in:7.0.24CVE-2021-21438derived 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 ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.63%probability of exploitation in 30 days

46thpercentile

Moderate risk: more likely to be exploited than 46% of all known CVEs.

References

Vendor Advisory1

otrs.com

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

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Markdown

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HTML

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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.