CVE-2024-45491
CRITICALCVSS 9.8/10EPSS 1.13%
Last modified
CVE-2024-45491 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).. EPSS estimates a 1.13% chance of exploitation in the next 30 days.
Description
An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libexpat Project | Libexpat | < 2.6.3 |
References
- https://github.com/libexpat/libexpat/issues/888Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2024-45491?
An issue was discovered in libexpat before 2.6.3. dtdCopy in xmlparse.c can have an integer overflow for nDefaultAtts on 32-bit platforms (where UINT_MAX equals SIZE_MAX).
How severe is CVE-2024-45491?
CVE-2024-45491 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.13% probability of exploitation in the next 30 days.
How do I fix CVE-2024-45491?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2024
- CVE-2024-45483A Missing Authentication for Critical Function vulnerability…7
- CVE-2024-45484An Allocation of Resources Without Limits or Throttling vuln…7.2
- CVE-2024-45488One Identity Safeguard for Privileged Passwords before 7.5.2…9.8
- CVE-2024-45489Arc before 2024-08-26 allows remote code execution in JavaSc…9.8
- CVE-2024-4549A denial of service vulnerability exists in Delta Electronic…7.5
- CVE-2024-45490An issue was discovered in libexpat before 2.6.3. xmlparse.c…7.5
- CVE-2024-45492An issue was discovered in libexpat before 2.6.3. nextScaffo…9.8
- CVE-2024-45493An issue was discovered in MSA FieldServer Gateway 5.0.0 thr…9.8
- CVE-2024-45494An issue was discovered in MSA FieldServer Gateway 5.0.0 thr…9.8
- CVE-2024-45495MSA FieldServer Gateway 5.0.0 through 6.5.2 allows cross-ori…4.3
- CVE-2024-45496A flaw was found in OpenShift. This issue occurs due to the …9.9
- CVE-2024-45497A flaw was found in the OpenShift build process, where the d…7.6
Are you affected by CVE-2024-45491?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST