{"id":"CVE-2025-62171","aliases":["GHSA-9pp9-cfwx-54rm"],"url":"https://o3.security/vulnerability/CVE-2025-62171","summary":"ImageMagick vulnerable to denial of service via integer overflow in BMP decoder on 32-bit systems","details":"ImageMagick is an open source software suite for displaying, converting, and editing raster image files. In ImageMagick versions prior to 7.1.2-7 and 6.9.13-32, an integer overflow vulnerability exists in the BMP decoder on 32-bit systems. The vulnerability occurs in coders/bmp.c when calculating the extent value by multiplying image columns by bits per pixel. On 32-bit systems with size_t of 4 bytes, a malicious BMP file with specific dimensions can cause this multiplication to overflow and wrap to zero. The overflow check added to address CVE-2025-57803 is placed after the overflow occurs, making it ineffective. A specially crafted 58-byte BMP file with width set to 536,870,912 and 32 bits per pixel can trigger this overflow, causing the bytes_per_line calculation to become zero. This vulnerability only affects 32-bit builds of ImageMagick where default resource limits for width, height, and area have been manually increased beyond their defaults. 64-bit systems with size_t of 8 bytes are not vulnerable, and systems using default ImageMagick resource limits are not vulnerable. The vulnerability is fixed in versions 7.1.2-7 and 6.9.13-32.","published":"2025-10-17T16:30:27.144Z","modified":"2026-08-08T09:06:36.013222Z","cvss":{"score":5.9,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":{"score":0.00755,"percentile":0.51624,"asOf":"2026-08-06"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"NuGet","name":"Magick.NET-Q16-AnyCPU","fixedVersion":"14.9.0"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-AnyCPU","fixedVersion":"14.9.0"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-HDRI-x86","fixedVersion":"14.9.0"},{"ecosystem":"NuGet","name":"Magick.NET-Q16-x86","fixedVersion":"14.9.0"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-AnyCPU","fixedVersion":"14.9.0"},{"ecosystem":"NuGet","name":"Magick.NET-Q8-x86","fixedVersion":"14.9.0"}],"fix":{"url":"https://github.com/ImageMagick/ImageMagick/commit/cea1693e2ded51b4cc91c70c54096cbed1691c00","label":"ImageMagick/ImageMagick@cea1693"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00019.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/62xxx/CVE-2025-62171.json"},{"type":"ADVISORY","url":"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-9pp9-cfwx-54rm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-62171"},{"type":"FIX","url":"https://github.com/ImageMagick/ImageMagick/commit/cea1693e2ded51b4cc91c70c54096cbed1691c00"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-08T09:06:36.013222Z"}}