Multiple integer overflows in the (1) createwbmp and (2) readwbmp functions in wbmp.c in the GD library (libgd) in PHP 4.0.0 through 4.4.6 and 5.0.0 through 5.2.1 allow context-dependent attackers to execute arbitrary code via Wireless Bitmap (WBMP) images with large width or height values.
Severity
Medium 6.8
Published
6 Apr 2007
Last changed
16 Jun 2026
Added to UpHeron
14 Oct 2026
Exploit chance
8.4% in the next 30 daysHigher than 95% of CVEs. EPSS by FIRST, 12 Nov 2026