Is CVE-2023-52426 in the CISA KEV catalog?

No. CVE-2023-52426 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-52426?

CVE-2023-52426 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2023-52426?

CVE-2023-52426 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-52426?

Upgrade expat on debian 13 to 2.6.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2023-52426

MEDIUM

5.5

CVSS v3

NVD

Description

libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.

CWE-776

How to fix

Remediation Available

expatDebian

Fixed in:2.6.0-1CVE-2023-52426

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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

github.com

Technical Description1

cwe.mitre.org

Other references4

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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 2025-11-04.