Is CVE-2024-23807 actively exploited?

No active exploitation of CVE-2024-23807 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-23807 be exploited remotely?

Yes. CVE-2024-23807 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-23807?

CVE-2024-23807 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2024-23807

CWE-416Published: February 29, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

The Apache Xerces C++ XML parser on versions 3.0.0 before 3.2.5 contains a use-after-free error triggered during the scanning of external DTDs.

Users are recommended to upgrade to version 3.2.5 which fixes the issue, or mitigate the issue by disabling DTD processing. This can be accomplished via the DOM using a standard parser feature, or via SAX using the XERCES_DISABLE_DTD environment variable.

This issue has been disclosed before as CVE-2018-1311, but unfortunately that advisory incorrectly stated the issue would be fixed in version 3.2.3 or 3.2.4.

NVD Source

Risk Analysis

The Apache Xerces C++ XML parser is affected by a use-after-free vulnerability during DTD processing, which can lead to arbitrary code execution. This critical flaw has a CVSS score of 9.8.

No public exploit is known for this vulnerability, and it is not in the CISA KEV catalog. It is remotely exploitable with low attack complexity.

Recommended Action

Upgrade to Apache Xerces C++ version 3.2.5 or disable DTD processing via the XERCES_DISABLE_DTD environment variable.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2024-23807 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

From a weakness classification perspective (CWE-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.