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Case File

CVE-2023-26431

MEDIUM · CVSS 5 EPSS 0.84% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-06-20 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.0. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit
External Security References

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-26431
Severity
MEDIUM
CVSS
5
EPSS
0.84%

Original NVD Description

IPv4-mapped IPv6 addresses did not get recognized as "local" by the code and a connection attempt is made. Attackers with access to user accounts could use this to bypass existing deny-list functionality and trigger requests to restricted network infrastructure to gain insight about topology and running services. We now respect possible IPV4-mapped IPv6 addresses when checking if contained in a deny-list. No publicly available exploits are known.

Related CVEs

Other vulnerabilities affecting the same vendor(s)