Vulnerability Description
A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occurs because of an error in how the `poptConfigFileToString` function reallocates memory for buffers. Successful exploitation could result in heap metadata corruption, potentially causing the affected process to become unavailable (denial of service).
CVSS Score
LOW
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2026:56984
- https://access.redhat.com/security/cve/CVE-2026-18743
- https://bugzilla.redhat.com/show_bug.cgi?id=2510809
FAQ
What is CVE-2026-18743?
CVE-2026-18743 is a vulnerability with a CVSS score of 2.5 (LOW). A flaw was found in popt. This vulnerability allows an attacker to provide specially crafted configuration content to a host, which, when loaded, can lead to a small memory corruption issue. This occu...
How severe is CVE-2026-18743?
CVE-2026-18743 has been rated LOW with a CVSS base score of 2.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-18743?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.