ImageMagick X11 OOB Write in display() before 7.1.2-18/6.9.13-43
CVE-2026-33535 Published on March 26, 2026
ImageMagick has an Out-of-Bounds write of a zero byte in its X11 display interaction
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to 7.1.2-18 and 6.9.13-43, an out-of-bounds write of a zero byte exists in the X11 `display` interaction path that could lead to a crash. Versions 7.1.2-18 and 6.9.13-43 patch the issue.
Vulnerability Analysis
CVE-2026-33535 can be exploited with local system access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a small impact on availability.
Weakness Type
What is a Memory Corruption Vulnerability?
The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.
CVE-2026-33535 has been classified to as a Memory Corruption vulnerability or weakness.
Products Associated with CVE-2026-33535
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Affected Versions
ImageMagick:- Version < 7.1.2-18 is affected.
- Version < 6.9.13-43 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.