CVE-2016-7145: The m_authenticate function in ircd/m_authenticate.c in nefarious2 allows remote attackers to spoof certifi...

Security readout for executives and security teams

This issue affects nefarious2 IRC software authentication. A remote attacker could manipulate the AUTHENTICATE parameter to spoof a certificate fingerprint and be treated as another user. That is an identity and access-control failure, not just a crash. The public bundle does not provide CVSS, broad affected-version data, or evidence of active exploitation. Likely exposure is limited to organizations running nefarious2 IRC services with certificate or SASL authentication paths enabled. The bundle does not identify packaged versions, distributions, or downstream forks. Internet-facing IRC services would carry the most practical business risk because authentication handling is remotely reachable. Prioritize remediation if nefarious2 is used in any production or internet-facing IRC service. The business concern is unauthorized impersonation, which can undermine trust, access control, and operational communications. If nefarious2 is not present, this should be closed as not applicable with evidence. Mitigation focus: Inventory any nefarious2 IRC deployments and downstream forks.; Review the referenced upstream commit and vendor guidance for the corrected code.; Update or rebuild affected deployments from a trusted fixed source..

Prepared

Jun 13, 2026, 06:02 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.