ImageMagick has a heap Buffer Over-read in its DJVU image format handler
Priority LOW 19CWE-122Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · Low
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat.
Summary
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, a heap buffer over-read vulnerability exists in the DJVU image format handler. The vulnerability occurs due to integer truncation when calculating the stride (row size) for pixel buffer allocation. The stride calculation overflows a 32-bit signed integer, resulting in an out-of-bounds memory reads. Versions 7.1.2-15 and 6.9.13-40 contain a patch.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00144 3rd percentileScored 2026-11-07
Fix Partial ImageMagick (ImageMagick): 6.9.13-40, 7.1.2-15Magick.NET-Q16-AnyCPU (NuGet): 14.10.3+18 more productsRed Hat: 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 6.9.13-40; 7.0.0 to before 7.1.2-15 | 6.9.13-40, 7.1.2-15 | Patch available | CNA |
| — | Magick.NET-Q16-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-HDRI-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-HDRI-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-HDRI-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-HDRI-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-OpenMP-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q16-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q8-AnyCPU (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q8-OpenMP-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q8-OpenMP-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q8-arm64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q8-x64 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
| — | Magick.NET-Q8-x86 (NuGet) | before 14.10.3 | 14.10.3 | Patch available | GHSA-r99p-5442-q2x2 |
- ImageMagick VendorImageMagick Affected before 6.9.13-40; 7.0.0 to before 7.1.2-15 Fixed in 6.9.13-40, 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-r99p-5442-q2x2
- Magick.NET-Q16-HDRI-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-HDRI-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-HDRI-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-HDRI-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-OpenMP-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q16-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q8-AnyCPU (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q8-OpenMP-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q8-OpenMP-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q8-arm64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q8-x64 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
- Magick.NET-Q8-x86 (NuGet) Vendor— Affected before 14.10.3 Fixed in 14.10.3 Patch available GHSA-r99p-5442-q2x2
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | before 6.9.13-40; 7.0.0-0 to before 7.1.2-15 | Vulnerable | ImageMagick |
| cpe:2.3:a:dlemstra:magick.net:*:*:*:*:*:*:*:* | before 14.10.3 | Vulnerable | Dlemstra |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 6.9.13-40; 7.0.0-0 to before 7.1.2-15 Vulnerable ·ImageMagick
- cpe:2.3:a:dlemstra:magick.net:*:*:*:*:*:*:*:* Versions before 14.10.3 Vulnerable ·Dlemstra
Remediation
- Fix · CNA ImageMagick (ImageMagick) Fixed in 6.9.13-40, 7.1.2-15
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-HDRI-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-HDRI-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-HDRI-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-HDRI-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-OpenMP-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q16-x86 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q8-AnyCPU (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q8-OpenMP-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q8-OpenMP-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q8-arm64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q8-x64 (NuGet) Fixed in 14.10.3 Advisory →
- Fix · GHSA-r99p-5442-q2x2 Magick.NET-Q8-x86 (NuGet) Fixed in 14.10.3 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. 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 |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-27799
- 2026-10-03 Alias added: GHSA-r99p-5442-q2x2
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-2026-27799 · CVE Program
- CVE-2026-27799 · NVD
- FIRST EPSS
- GHSA-r99p-5442-q2x2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-27799 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences