CVE-2024-45492

CRITICAL

Published Aug 30, 2024 Modified May 12, 2026 CWE-190

Description

An issue was discovered in libexpat before 2.6.3. nextScaffoldPart in xmlparse.c can have an integer overflow for m_groupSize on 32-bit platforms (where UINT_MAX equals SIZE_MAX).

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-190 Integer Overflow

Affected Products

Vendor	Product	Versions
libexpat_project	libexpat	< 2.6.3

References

Advisories & Patches

https://github.com/libexpat/libexpat/pull/892

Other References

https://github.com/libexpat/libexpat/issues/889 https://lists.debian.org/debian-lts-announce/2024/09/msg00036.html https://security.netapp.com/advisory/ntap-20241018-0005/ https://cert-portal.siemens.com/productcert/html/ssa-082556.html https://cert-portal.siemens.com/productcert/html/ssa-613116.html

Frequently Asked Questions

What is CVE-2024-45492? +

An issue was discovered in libexpat before 2.6.3. nextScaffoldPart in xmlparse.c can have an integer overflow for m_groupSize on 32-bit platforms (where UINT_MAX equals SIZE_MAX). It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-45492? +

CVE-2024-45492 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-45492? +

CVE-2024-45492 affects products from libexpat_project, specifically: libexpat. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-45492? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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