Is CVE-2025-26467 in the CISA KEV catalog?

No. CVE-2025-26467 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-26467?

CVE-2025-26467 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2025-26467?

CVE-2025-26467 has an EPSS score of 0.47% (38th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-26467?

Upgrade cassandra to 5.0.3 or later.

CVE & CISA-KEV Catalog

CVE-2025-26467

HIGH

8.8

CVSS v3

NVD

Description

Privilege Defined With Unsafe Actions vulnerability in Apache Cassandra. An user with MODIFY permission ON ALL KEYSPACES can escalate privileges to superuser within a targeted Cassandra cluster via unsafe actions to a system resource. Operators granting data MODIFY permission on all keyspaces on affected versions should review data access rules for potential breaches. This issue affects Apache Cassandra 3.0.30, 3.11.17, 4.0.16, 4.1.7, 5.0.2, but this advisory is only for 4.0.16 because the fix to CVE-2025-23015 was incorrectly applied to 4.0.16, so that version is still affected. Users in the 4.0 series are recommended to upgrade to version 4.0.17 which fixes the issue. Users from 3.0, 3.11, 4.1 and 5.0 series should follow recommendation from CVE-2025-23015.

CWE-267

How to fix

Remediation Available

cassandraNVD

Affected:>= 5.0.0, < 5.0.3Fixed in:5.0.3CVE-2025-26467derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.47%probability of exploitation in 30 days

38thpercentile

Low risk: more likely to be exploited than 38% of all known CVEs.

References

Vendor Advisory1

lists.apache.org

Related Vulnerabilities

Other CWE-267 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2025-41244	High	7.8	7.9%	KEV	Fix
CVE-2024-42365	High	7.4	4.7%	-	Fix
CVE-2025-47811	Medium	4.1	3.5%	-	Fix
CVE-2020-29396	High	8.8	3.2%	-	-
CVE-2019-10169	Medium	6.6	1.3%	-	Fix
CVE-2019-10170	Medium	6.6	1.2%	-	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 2025-08-26.