CVE-2013-5606

CVE-2013-5606 describes a vulnerability in the CERT_VerifyCert function within Mozilla Network Security Services (NSS) versions prior to 3.15.3. This flaw allows remote attackers to bypass access restrictions by crafting a malicious certificate that causes an unexpected return value during certificate validation. The vulnerability has a CVSS score of 5.8, indicating a medium severity with a network-based attack vector, medium attack complexity, and potential for partial confidentiality and integrity impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.