Is CVE-2025-61643 in the CISA KEV catalog?

No. CVE-2025-61643 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-61643?

CVE-2025-61643 has a CVSS v3 base score of 6.1 (MEDIUM).

What is the EPSS score for CVE-2025-61643?

CVE-2025-61643 has an EPSS score of 0.23% (14th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-61643?

Upgrade mediawiki on debian 11 to 1:1.35.13-1+deb11u5 or later.

CVE & CISA-KEV Catalog

CVE-2025-61643

MEDIUM

6.1

CVSS v3

NVD

Description

Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/recentchanges/RecentChangeRCFeedNotifier.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.

CWE-212

How to fix

Remediation Available

mediawikiDebian

Fixed in:1:1.35.13-1+deb11u5CVE-2025-61643

Fixed in:1:1.39.17-1~deb12u1CVE-2025-61643

Fixed in:1:1.43.6+dfsg-1~deb13u1CVE-2025-61643

Fixed in:1:1.43.5+dfsg-1CVE-2025-61643

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

ScopeChanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.23%probability of exploitation in 30 days

14thpercentile

Low risk: more likely to be exploited than 14% of all known CVEs.

References

Other references1

phabricator.wikimedia.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 2026-03-25.