CVE-2022-23990
HIGHCVSS 7.5/10EPSS 3.96%
Last modified
CVE-2022-23990 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.. EPSS estimates a 3.96% chance of exploitation in the next 30 days.
Description
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libexpat Project | Libexpat | < 2.4.4 |
| Tenable | Nessus | < 8.15.3 |
| Tenable | Nessus | >= 10.0.0, < 10.1.1 |
| Oracle | Communications Metasolv Solution | 6.3.1 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
| Siemens | Sinema Remote Connect Server | < 3.1 |
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfPatch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/551Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://www.debian.org/security/2022/dsa-5073Mailing List, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- https://www.tenable.com/security/tns-2022-05Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfPatch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/551Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://www.debian.org/security/2022/dsa-5073Mailing List, Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
- https://www.tenable.com/security/tns-2022-05Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-23990?
Expat (aka libexpat) before 2.4.4 has an integer overflow in the doProlog function.
How severe is CVE-2022-23990?
CVE-2022-23990 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 3.96% probability of exploitation in the next 30 days.
How do I fix CVE-2022-23990?
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.
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Are you affected by CVE-2022-23990?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST