CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 5.4. See the original NVD description below for full technical details.
CVE
CVE-2026-4438
Severity
MEDIUM
CVSS
5.4
EPSS
0.32%
Original NVD Description
Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the GNU C library version 2.34 to version 2.43 could result in an invalid DNS hostname being returned to the caller in violation of the DNS specification.
Related CVEs
Other vulnerabilities affecting the same vendor(s)