CVE-2025-53014: 
ImageMagick vulnerability analysis and mitigation

ImageMagick versions prior to 7.1.2-0 and 6.9.13-26 contain a heap buffer overflow vulnerability in the InterpretImageFilename function (CVE-2025-53014). The vulnerability was discovered and disclosed on July 13, 2025, affecting the free and open-source software used for editing and manipulating digital images (GitHub Advisory).

The vulnerability stems from an off-by-one error in the InterpretImageFilename function that causes out-of-bounds memory access when processing format strings containing consecutive percent signs (%%). The issue occurs in a loop where a pointer arithmetic operation leads to accessing memory beyond the allocated buffer. The vulnerability has been assigned a CVSS v3.1 base score of 3.7 (Low) with the vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N, indicating network attack vector with high complexity and potential for unauthorized information disclosure (GitHub Advisory).

The vulnerability can lead to unauthorized read access to heap memory locations, potentially exposing sensitive information. The impact is limited to confidentiality with no direct effect on system integrity or availability (GitHub Advisory).

The vulnerability has been fixed in ImageMagick versions 7.1.2-0 and 6.9.13-26. The fix involves modifying the pointer arithmetic in the InterpretImageFilename function to prevent out-of-bounds access while maintaining the correct logic for handling percent signs. Users are advised to upgrade to these or later versions (GitHub Advisory).