CVE-2026-25898Imagemagick Has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer
- 6.5MediumCVSS base score
- 0.40%Exploitation in 30 daysEPSS · top 66% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, the UIL and XPM image encoder do not validate the pixel index value returned by `GetPixelIndex()` before using it as an array subscript. In HDRI builds, `Quantum` is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger a global buffer overflow read during conversion, leading to information disclosure or a process crash. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Timeline
ID reserved
By GitHub_M
- 18 days later
· 18 days later
Published
- 2 days later
· 2 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | Medium6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L |
| NVDNVD · Analyzed | 3.1 | Critical9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.40% · top 66% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.5.
Affected products
- affected >= 7.0.0, < 7.1.2-15
- affected < 6.9.13-40
Affected packages
Affected packages17
From reviewed advisories of the GitHub Advisory Database.
- NuGetMagick.NET-Q16-AnyCPUGHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-HDRI-AnyCPUGHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-HDRI-OpenMP-arm64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-HDRI-OpenMP-x64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-HDRI-arm64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-HDRI-x64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-OpenMP-arm64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-OpenMP-x64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-OpenMP-x86GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-arm64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-x64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q16-x86GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q8-AnyCPUGHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q8-OpenMP-arm64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q8-OpenMP-x64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q8-arm64GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- NuGetMagick.NET-Q8-x86GHSA-vpxv-r9pg-7gpr (opens in a new tab)
References
References1
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-7439 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-vpxv-r9pg-7gpr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-25898)Record last updated .