CVE-2019-11042: heap-buffer-overflow on exif_process_user_comment in EXIF extension

Security readout for executives and security teams

This is a PHP image-metadata parsing flaw. If an affected PHP application reads EXIF data from an attacker-supplied image, PHP may read past memory bounds, potentially leaking limited information or crashing the process. It is not listed in KEV, and the provided sources do not show active exploitation. Exposure is most likely in PHP applications that accept or process uploaded images and call PHP EXIF functions. Systems running vendor-backported PHP packages may need package-level verification, not only upstream version checks. Treat as a targeted maintenance priority, not an emergency, unless critical services parse untrusted image uploads with affected PHP. Patch through normal security update processes and prioritize internet-facing upload workflows first. Mitigation focus: Upgrade PHP to 7.1.31, 7.2.21, 7.3.8, or later supported releases.; Apply Debian, Ubuntu, Red Hat, openSUSE, Apple, or vendor backported security packages where applicable.; Inventory applications using PHP EXIF functions on uploaded or external images..

Prepared

Jun 1, 2026, 12:34 UTC (UTC+00:00)

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