ImageMagick CLAHE : Unsigned underflow and division-by-zero lead to OOB pointer arithmetic and process crash (DoS)
Priority MEDIUM 58CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
ImageMagick is a software suite to create, edit, compose, or convert bitmap images. ImageMagick versions prior to 7.1.2-8 are vulnerable to denial-of-service due to unsigned integer underflow and division-by-zero in the CLAHEImage function. When tile width or height is zero, unsigned underflow occurs in pointer arithmetic, leading to out-of-bounds memory access, and division-by-zero causes immediate crashes. This issue has been patched in version 7.1.2-8.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00369 30th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial ImageMagick (ImageMagick): 7.1.2-8Red Hat: 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- 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 7.1.2-8 | 7.1.2-8 | Patch available | CNA |
| — | Magick.NET-Q16-x64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q8-x64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-HDRI-x64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q8-OpenMP-x64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-OpenMP-x64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q8-arm64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-arm64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-OpenMP-arm64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q8-OpenMP-arm64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
| — | Magick.NET-Q16-HDRI-arm64 (NuGet) | up to 14.9.0 | — | No fix listed | GHSA-wpp4-vqfq-v4hp |
- ImageMagick VendorImageMagick Affected before 7.1.2-8 Fixed in 7.1.2-8 Patch available CNA
- Magick.NET-Q16-x64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q8-x64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-HDRI-x64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q8-OpenMP-x64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-HDRI-OpenMP-x64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-OpenMP-x64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q8-arm64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-arm64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-OpenMP-arm64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q8-OpenMP-arm64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-HDRI-OpenMP-arm64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
- Magick.NET-Q16-HDRI-arm64 (NuGet) Vendor— Affected up to 14.9.0 Fixed in — No fix listed GHSA-wpp4-vqfq-v4hp
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | before 7.1.2-8 | Vulnerable | ImageMagick |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 7.1.2-8 Vulnerable ·ImageMagick
Remediation
- Fix · CNA ImageMagick (ImageMagick) Fixed in 7.1.2-8
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 yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-62594
- 2026-10-03 Alias added: GHSA-wpp4-vqfq-v4hp
References
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-2025-62594 · CVE Program
- CVE-2025-62594 · NVD
- FIRST EPSS
- GHSA-wpp4-vqfq-v4hp · GitHub Advisory Database · CC BY 4.0
- CVE-2025-62594 · 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