CVE-2024-45492 Integer overflow in n/a

What is CVE-2024-45492?

CVE-2024-45492 is a high-severity vulnerability in Libexpat Project Libexpat, published on 30 Aug 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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).

Weakness: CWE-190

Which versions are affected by CVE-2024-45492?

It affects 1 product.

Products include Libexpat Project Libexpat.

How do I fix CVE-2024-45492?

Upgrade to a fixed version.

Is CVE-2024-45492 being exploited?

There is no known exploitation of CVE-2024-45492 in the wild and no public exploit code.

Other vulnerabilities in Libexpat Project Libexpat

• CVE-2024-45490 Integer overflow in n/a Critical 9.8
• CVE-2026-66046 Expat Denial of Service via storeAtts() Quadratic Complexity High 8.7
• CVE-2021-46143 Integer overflow in n/a High 8.1
• CVE-2017-11742 Privilege escalation in n/a High 7.8
• CVE-2025-59375 Denial of service in libexpat High 7.5

All Libexpat Project Libexpat vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2024-45492, AZL-48394, AZL-48466, BELL-CVE-2024-45492, CLEANSTART-2026-JD18837, DEBIAN-CVE-2024-45492 and 3 more.