CVE-2007-4137: Off-by-one error in the QUtf8Decoder::toUnicode function in Trolltech Qt 3 allows context-dependent attacke...

Security readout for executives and security teams

CVE-2007-4137 is an old Qt 3 text-decoding flaw that can crash affected software when it processes a specially crafted Unicode string. The cited record describes denial of service, not confirmed code execution. Business urgency depends on whether legacy Qt 3 applications still process untrusted text. Exposure is most likely in legacy systems or appliances using Trolltech Qt 3, especially applications that parse or render untrusted UTF-8 or Unicode input. The provided affected-product data is incomplete, but multiple Linux distribution and vendor advisories are referenced. Prioritize this if legacy Qt 3 remains in externally exposed or business-critical applications. For modern environments without Qt 3, urgency is low. The main documented impact is application crash, so focus on availability-sensitive systems first. Mitigation focus: Inventory applications and packages that depend on Trolltech Qt 3.; Apply updates from the relevant vendor or Linux distribution advisory.; Check vendor guidance for exact fixed package names and versions..

Prepared

Jun 29, 2026, 03:38 UTC (UTC+00:00)

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