CVE-2012-4562: Multiple integer overflows in libssh before 0.5.3 allow remote attackers to cause a denial of service (infi...

Security readout for executives and security teams

CVE-2012-4562 affects libssh before 0.5.3. A remote attacker could trigger integer overflow conditions that may crash or hang software using libssh, causing service disruption. The public record also says arbitrary code execution may be possible, but the vectors are unspecified. Exposure is likely limited to systems or applications still using libssh versions older than 0.5.3, including distribution packages or bundled copies. Modern supported platforms are unlikely to remain affected if security updates have been maintained. Treat this as a legacy exposure cleanup item with business impact from possible remote denial of service. Escalate only if critical services still run libssh before 0.5.3 or unsupported operating systems. Mitigation focus: Upgrade libssh to 0.5.3 or a vendor-fixed package version.; Apply relevant Debian, Ubuntu, SUSE, Fedora, or Mandriva security updates.; Inventory applications that bundle or statically link libssh..

Prepared

Jun 24, 2026, 12:04 UTC (UTC+00:00)

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