CVE-2013-4560: Use-after-free vulnerability in lighttpd before 1.4.33 allows remote attackers to cause a denial of service...

Security readout for executives and security teams

This issue can let a remote attacker crash vulnerable lighttpd web servers. The public record describes denial of service only, not data theft or code execution. Business urgency depends on whether lighttpd before 1.4.33 is exposed on internet-facing or business-critical services. Exposure is most likely on systems running lighttpd before 1.4.33, especially where FAM directory monitoring is enabled or packaged by affected distributions. Internet-facing reverse proxies, static sites, embedded services, and vendor-managed systems should be inventoried. Handle as a service-availability risk. It is not documented here as data compromise or ransomware-enabling, but vulnerable public servers could be crashed. Patch during the next maintenance window, sooner for critical or customer-facing services. Mitigation focus: Upgrade lighttpd to 1.4.33 or a vendor package containing the fix.; Apply relevant Debian, openSUSE, HP, or vendor security updates where applicable.; Confirm third-party appliances do not bundle vulnerable lighttpd versions..

Prepared

Jun 14, 2026, 15:13 UTC (UTC+00:00)

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