Is CVE-2021-25631 in the CISA KEV catalog?

No. CVE-2021-25631 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-25631?

CVE-2021-25631 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2021-25631?

CVE-2021-25631 has an EPSS score of 4.17% (90th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-25631?

Upgrade LibreOffice to 7.1.2 or later.

CVE & CISA-KEV Catalog

CVE-2021-25631

HIGHEPSS 90th pctl

8.8

CVSS v3

NVD

Description

In the LibreOffice 7-1 series in versions prior to 7.1.2, and in the 7-0 series in versions prior to 7.0.5, the denylist can be circumvented by manipulating the link so it doesn't match the denylist but results in ShellExecute attempting to launch an executable type.

CWE-184

How to fix

Remediation Available

LibreOfficeWindows application

Affected:7.1.0 7.1.2Fixed in:7.1.2The Document Foundation

Affected:7.0.0 7.0.5Fixed in:7.0.5The Document Foundation

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 RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

4.17%probability of exploitation in 30 days

90thpercentile

Elevated risk: more likely to be exploited than 90% of all known CVEs.

References

Exploit1

positive.security

Vendor Advisory1

libreoffice.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 2024-11-21.