High
ImageMagick is vulnerable to an Integer Overflow in TIM decoder leading to out of bounds read (32-bit only)
Type: advisorySources: OSV
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. In versions 7.1.2-9 and prior, the TIM (PSX TIM) image parser contains a critical integer overflow vulnerability in its ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow. On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read. This issue is fixed in version 7.1.2-10.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-66628
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 03:52 UTC · Revision 1
Source evidence
ImageMagick is vulnerable to an Integer Overflow in TIM decoder leading to out of bounds read (32-bit only)
core-osv · Original sourcePublished 10 Dec 2025, 22:04 UTC
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. In versions 7.1.2-9 and prior, the TIM (PSX TIM) image parser contains a critical integer overflow vulnerability in its ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow. On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read. This issue is fixed in version 7.1.2-10.
osv:CVE-2025-66628
Complete source record
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"url": "https://osv.dev/vulnerability/CVE-2025-66628",
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"title": "ImageMagick is vulnerable to an Integer Overflow in TIM decoder leading to out of bounds read (32-bit only)",
"summary": "ImageMagick is a software suite to create, edit, compose, or convert bitmap images. In versions 7.1.2-9 and prior, the TIM (PSX TIM) image parser contains a critical integer overflow vulnerability in its ReadTIMImage function (coders/tim.c). The code reads width and height (16-bit values) from the file header and calculates image_size = 2 * width * height without checking for overflow. On 32-bit systems (or where size_t is 32-bit), this calculation can overflow if width and height are large (e.g., 65535), wrapping around to a small value. This results in a small heap allocation via AcquireQuantumMemory and later operations relying on the dimensions can trigger an out of bounds read. This issue is fixed in version 7.1.2-10.",
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"7.0.1-2",
"7.0.1-1",
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-66628.json"
}
}
],
"modified": "2026-10-28T02:30:32.860459137Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66628.json",
"https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-6hjr-v6g4-3fm8",
"https://nvd.nist.gov/vuln/detail/CVE-2025-66628",
"https://github.com/dlemstra/Magick.NET/commit/2dfa08e15cfd11016a79615994787b14f9048b1c"
],
"provider_metadata": {
"cwe_ids": [
"CWE-125"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66628.json"
}
},
"related_cves": [
{
"value": "CVE-2025-66628",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 500151,
"published_at": "2025-12-10T22:04:49.639+00:00"
}