Heap-based buffer overflow in ImageMagick
Priority MEDIUM 42CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. `WriteUHDRImage` in `coders/uhdr.c` uses `int` arithmetic to compute the pixel buffer size. Prior to version 7.1.2-15, when image dimensions are large, the multiplication overflows 32-bit `int`, causing an undersized heap allocation followed by an out-of-bounds write. This can crash the process or potentially lead to an out of bounds heap write. Version 7.1.2-15 contains a patch.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00467 40th percentileScored 2026-11-07
Fix Partial ImageMagick (ImageMagick): 7.1.2-15Magick.NET-Q16-AnyCPU (NuGet): 14.10.3+18 more productsRed Hat: 1 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| ImageMagick | ImageMagick | before 7.1.2-15 | 7.1.2-15 | Patch available | CNA |
| — | Magick.NET-Q16-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-HDRI-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-HDRI-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-HDRI-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-HDRI-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-OpenMP-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q16-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q8-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q8-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q8-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q8-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q8-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
| — | Magick.NET-Q8-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-vhqj-f5cj-9x8h |
- ImageMagick VendorImageMagick Affected before 7.1.2-15 Fixed in 7.1.2-15 Patch available CNA
- Magick.NET-Q16-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-HDRI-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-HDRI-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-HDRI-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-HDRI-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-OpenMP-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q16-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q8-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q8-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q8-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q8-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q8-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
- Magick.NET-Q8-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-vhqj-f5cj-9x8h
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | before 7.1.2-15 | Vulnerable | ImageMagick |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 7.1.2-15 Vulnerable ·ImageMagick
Remediation
- Fix · CNA ImageMagick (ImageMagick) Fixed in 7.1.2-15
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-HDRI-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-HDRI-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-HDRI-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-HDRI-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-OpenMP-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q16-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q8-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q8-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q8-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q8-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q8-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-vhqj-f5cj-9x8h Magick.NET-Q8-x86 (NuGet) Fixed in 14.10.3 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
Not affected: 1 product
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-25794
- 2026-10-03 Alias added: GHSA-vhqj-f5cj-9x8h
- 2026-10-23 EPSS moved to the 50th–90th percentile
- 2026-10-25 EPSS moved to the below the 50th percentile
References
Advisory 2
More Imagemagick vulnerabilities
- TI-2016-03144 The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT… KEVCVSS 3.1HIGH 8.4
- TI-2023-16996 Improper input validation in ImageMagick CVSS 3.1CRITICAL 9.8
- TI-2016-03148 The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1… KEVCVSS 3.1MEDIUM 5.5
- TI-2016-03145 The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote… KEVCVSS 3.1MEDIUM 5.5
- TI-2025-35690 ImageMagick BlobStream Forward-Seek Under-Allocation CVSS 3.1CRITICAL 9.8
- TI-2025-33094 ImageMagick has Stack Buffer Overflow in image.c CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-25794 · CVE Program
- CVE-2026-25794 · NVD
- FIRST EPSS
- GHSA-vhqj-f5cj-9x8h · GitHub Advisory Database · CC BY 4.0
- CVE-2026-25794 · Red Hat security data · CC BY 4.0
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