CVE-2008-4639: jhead.c in Matthias Wandel jhead 2.84 and earlier allows local users to overwrite arbitrary files via a sym...

Security readout for executives and security teams

CVE-2008-4639 is a local file-overwrite issue in jhead 2.84 and earlier. A user with local access could abuse temporary-file handling through a symlink. Business risk depends on whether jhead exists on systems where untrusted users can run it. Exposure is most likely on Linux or Unix-like systems with jhead installed, especially shared systems, image-processing workflows, or automation that runs jhead on behalf of users. The provided affected-product metadata is incomplete, so inventory confirmation is required. Treat this as a targeted hygiene item, not an emergency, unless jhead is used on shared systems or privileged image-processing services. The lack of KEV listing and remote-exploitation evidence lowers urgency, but arbitrary local file overwrite can still matter in multi-user environments. Mitigation focus: Inventory systems for jhead and identify versions 2.84 or earlier.; Check vendor or distribution advisories for the fixed jhead package version.; Prioritize shared hosts and automation that processes user-supplied images..

Prepared

Jun 28, 2026, 11:59 UTC (UTC+00:00)

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