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.
CVE-2026-25794
This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.2
- EG Score
- 8.2(low)
- EG Risk
- —
- EPSS
- 34.4%
- KEV
- Not listed
Published
February 24, 2026
Last Modified
July 15, 2026
Advisory Details (4)
Auto-updated Jun 30, 2026Affected: Red Hat Enterprise Linux 6",
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-25794.json2442110 – (CVE-2026-25794) CVE-2026-25794 ImageMagick: ImageMagick: Denial of service and potential arbitrary code execution via integer overflow in image processing
https://bugzilla.redhat.com/show_bug.cgi?id=2442110Heap-buffer-overflow via signed integer overflow in `WriteUHDRImage` when writing UHDR images with large dimensions · Advisory · ImageMagick/ImageMagick · GitHub
https://github.com/ImageMagick/ImageMagick/security/advisories/GHSA-vhqj-f5cj-9x8hPatch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | perlmagick (8:6.9.11.60+dfsg-1.3ubuntu0.22.04.5+esm10) @ jammy | 2026-06-30 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(19 across 1 ecosystem)
NuGet(19)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| Magick.NET-Q16-AnyCPU | 10.0.0 ... 9.1.2 (209 versions) | 14.10.3 | — |
| Magick.NET-Q16-arm64 | 10.0.0 ... 9.1.2 (54 versions) | 14.10.3 | — |
| Magick.NET-Q16-HDRI-AnyCPU | 10.0.0 ... 9.1.2 (206 versions) | 14.10.3 | — |
| Magick.NET-Q16-HDRI-arm64 | 10.0.0 ... 9.1.2 (54 versions) | 14.10.3 | — |
| Magick.NET-Q16-HDRI-OpenMP-arm64 | 10.0.0 ... 9.1.2 (54 versions) | 14.10.3 | — |
| Magick.NET-Q16-HDRI-OpenMP-x64 | 10.0.0 ... 9.1.2 (106 versions) | 14.10.3 | — |
| Magick.NET-Q16-HDRI-x64 | 10.0.0 ... 9.1.2 (206 versions) | 14.10.3 | — |
| Magick.NET-Q16-HDRI-x86 | 10.0.0 ... 9.1.2 (206 versions) | 14.10.3 | — |
| Magick.NET-Q16-OpenMP-arm64 | 10.0.0 ... 9.1.2 (54 versions) | 14.10.3 | — |
| Magick.NET-Q16-OpenMP-x64 | 10.0.0 ... 9.1.2 (106 versions) | 14.10.3 | — |
| Magick.NET-Q16-OpenMP-x86 | — | 14.10.3 | — |
| Magick.NET-Q16-x64 | 10.0.0 ... 9.1.2 (225 versions) | 14.10.3 | — |
| Magick.NET-Q16-x86 | 10.0.0 ... 9.1.2 (225 versions) | 14.10.3 | — |
| Magick.NET-Q8-AnyCPU | 10.0.0 ... 9.1.2 (209 versions) | 14.10.3 | — |
| Magick.NET-Q8-arm64 | 10.0.0 ... 9.1.2 (54 versions) | 14.10.3 | — |
| Magick.NET-Q8-OpenMP-arm64 | 10.0.0 ... 9.1.2 (54 versions) | 14.10.3 | — |
| Magick.NET-Q8-OpenMP-x64 | 10.0.0 ... 9.1.2 (106 versions) | 14.10.3 | — |
| Magick.NET-Q8-x64 | 10.0.0 ... 9.1.2 (225 versions) | 14.10.3 | — |
| Magick.NET-Q8-x86 | 10.0.0 ... 9.1.2 (225 versions) | 14.10.3 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 14× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-18 06:59 UTCOSV refresh
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-13 22:30 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-09 19:10 UTCEPSS rescore
Show 16 moreShow fewer
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-08 15:15 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 16:27 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-06 02:23 UTCEPSS rescore
- 2026-07-05 02:30 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-04 06:31 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-07-01 15:06 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 23:22 UTCEPSS rescore
- 2026-06-30 04:41 UTCEG score recompute
- 2026-06-30 04:41 UTCVendor advisory
- 2026-06-30 04:31 UTCNVD updatefirst tracked
Frequently asked(5)
What is CVE-2026-25794?
When was CVE-2026-25794 disclosed?
Is CVE-2026-25794 actively exploited?
What is the CVSS score of CVE-2026-25794?
How do I remediate CVE-2026-25794?
Dependency Blast Radius
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