CVE-2004-0693: The GIF parser in the QT library (qt3) before 3.3.3 allows remote attackers to cause a denial of service (a...

Security readout for executives and security teams

CVE-2004-0693 is an old Qt 3 GIF parsing flaw. A specially malformed GIF can crash an application that uses vulnerable qt3 code to process that image. The public bundle describes denial of service only, not code execution or data theft. Exposure is most plausible on legacy Linux or Unix systems, embedded products, or older desktop applications still using Qt 3 libraries and processing untrusted GIF files. The bundle’s affected-product metadata is incomplete, so confirm against local packages and vendor advisories. Prioritize remediation where legacy Qt 3 applications handle external images or support critical operations. The likely business impact is service interruption, not confirmed compromise. Because the vulnerability is old, the bigger concern is unmanaged legacy software that may carry multiple unresolved issues. Mitigation focus: Inventory systems and applications for Qt 3 or qt3 dependencies.; Apply vendor-fixed qt3 packages or upgrade beyond versions before 3.3.3.; Check distribution advisories for exact package names and backported fixes..

Prepared

Jun 30, 2026, 04:32 UTC (UTC+00:00)

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