CVE-2011-0761: Perl 5.10.x allows context-dependent attackers to cause a denial of service (NULL pointer dereference and a...

Security readout for executives and security teams

CVE-2011-0761 is an availability issue in Perl 5.10.x. If an attacker can influence arguments passed into certain built-in functions, the Perl process may hit a NULL pointer dereference and crash. The business impact is service interruption, not documented data theft or privilege escalation. Exposure is most likely in systems running Perl 5.10.x where application logic passes attacker-influenced values into the named functions. Risk is context-dependent and may be negligible where those code paths are internal-only or absent. Treat this as a targeted availability risk. Prioritize if Perl 5.10.x supports customer-facing, revenue, or operational workflows. Lower priority is reasonable where Perl 5.10.x is absent or the affected calls are not reachable by untrusted input. Mitigation focus: Inventory systems and applications using Perl 5.10.x.; Check Perl, OS distribution, and vendor guidance for fixed packages or supported upgrade paths.; Prioritize remediation for internet-facing or business-critical Perl services..

Prepared

Jun 24, 2026, 13:28 UTC (UTC+00:00)

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