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NVD / CVE Program· CNA GitHub_M

CVE-2026-25794: ImageMagick has heap-buffer-overflow via signed integer overflow in `WriteUHDRImage` when writing UHDR images with large dimensions

HighCVSS 8.2 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.46% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • According to CISA the attack is automatable: targets can be found by mass scanning.
  • Fixed version: imagemagick (Alpine:v3.22) 7.1.2.15-r0; imagemagick (Debian:13) 8:7.1.1.43+dfsg1-1+deb13u6; imagemagick (Debian:14) 8:7.1.2.15+dfsg1-1.

Low priority for now. Upgrade to imagemagick (Alpine:v3.22) 7.1.2.15-r0; imagemagick (Debian:13) 8:7.1.1.43+dfsg1-1+deb13u6; imagemagick (Debian:14) 8:7.1.2.15+dfsg1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

Published
Feb 23, 2026
Updated
Jul 15, 2026
EPSS
0.4% · 40th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.2 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
8.2
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-25794

When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
imagemagickimagemagick

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • ImageMagick ImageMagick

    • < 7.1.2-15affected

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • imagemagick imagemagickbefore 7.1.2-15

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.22imagemagickbefore 7.1.2.15-r07.1.2.15-r0
Debian:13imagemagickbefore 8:7.1.1.43+dfsg1-1+deb13u68:7.1.1.43+dfsg1-1+deb13u6
Debian:14imagemagickbefore 8:7.1.2.15+dfsg1-18:7.1.2.15+dfsg1-1
NuGetMagick.NET-Q16-AnyCPUbefore 14.10.314.10.3
NuGetMagick.NET-Q16-arm64before 14.10.314.10.3
NuGetMagick.NET-Q16-HDRI-AnyCPUbefore 14.10.314.10.3
NuGetMagick.NET-Q16-HDRI-arm64before 14.10.314.10.3
NuGetMagick.NET-Q16-HDRI-OpenMP-arm64before 14.10.314.10.3
NuGetMagick.NET-Q16-HDRI-OpenMP-x64before 14.10.314.10.3
NuGetMagick.NET-Q16-HDRI-x64before 14.10.314.10.3
NuGetMagick.NET-Q16-HDRI-x86before 14.10.314.10.3
NuGetMagick.NET-Q16-OpenMP-arm64before 14.10.314.10.3
NuGetMagick.NET-Q16-OpenMP-x64before 14.10.314.10.3
NuGetMagick.NET-Q16-OpenMP-x86before 14.10.314.10.3
NuGetMagick.NET-Q16-x64before 14.10.314.10.3
NuGetMagick.NET-Q16-x86before 14.10.314.10.3
NuGetMagick.NET-Q8-AnyCPUbefore 14.10.314.10.3
NuGetMagick.NET-Q8-arm64before 14.10.314.10.3
NuGetMagick.NET-Q8-OpenMP-arm64before 14.10.314.10.3
NuGetMagick.NET-Q8-OpenMP-x64before 14.10.314.10.3
NuGetMagick.NET-Q8-x64before 14.10.314.10.3
NuGetMagick.NET-Q8-x86before 14.10.314.10.3
openSUSE:Leap 16.0ImageMagickbefore 7.1.2.0-160000.6.17.1.2.0-160000.6.1
openSUSE:TumbleweedImageMagickbefore 7.1.2.15-1.17.1.2.15-1.1

Same product

imagemagick: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-3714The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT coders in ImageMagick before 6.9.3-10 and 7.x…KEV
    92Now
  • CVE-2016-3718The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allow remote attackers to conduct server-side request…KEV
    75This week
  • CVE-2016-3715The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote attackers to delete arbitrary files via a crafted…KEV
    75This week

Published before and after this one in the same product

  • ← EarlierCVE-2026-25637Feb 23, 2026 · ImageMagick: Possible memory leak in ASHLAR encoder
    21Monitor
  • ← EarlierCVE-2026-25638Feb 23, 2026 · ImageMagick has memory leak in msl encoder
    21Monitor
  • Later →CVE-2026-25795Feb 23, 2026 · ImageMagick has NULL pointer dereference in ReadSFWImage after DestroyImageInfo (sfw.c)
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:imagemagick7.1.2.15-r0 · Alpine:v3.22Package registry (OSV)
debian:imagemagick8:7.1.1.43+dfsg1-1+deb13u6 · Debian:13Package registry (OSV)
NuGet:Magick.NET-Q16-AnyCPU14.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-arm6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-AnyCPU14.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-arm6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-OpenMP-arm6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-OpenMP-x6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-x6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-HDRI-x8614.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-OpenMP-arm6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-OpenMP-x6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-OpenMP-x8614.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-x6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q16-x8614.10.3Package registry (OSV)
NuGet:Magick.NET-Q8-AnyCPU14.10.3Package registry (OSV)
NuGet:Magick.NET-Q8-arm6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q8-OpenMP-arm6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q8-OpenMP-x6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q8-x6414.10.3Package registry (OSV)
NuGet:Magick.NET-Q8-x8614.10.3Package registry (OSV)
opensuse:ImageMagick7.1.2.15-1.1 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-258970 days apartImageMagick has heap overflow in sun decoder on 32-bit systems that can result in out of bounds write
    39Monitor
  • CVE-2026-2387635 days apartHeap buffer overflow with attacker-controlled data in XBM parser
    39Monitor
  • CVE-2025-57807171 days apartImageMagick BlobStream Forward-Seek Under-Allocation
    39Monitor
  • CVE-2026-262840 days apartImageMagick has heap overflow in pcd decoder that leads to out of bounds read.
    36Monitor
  • CVE-2025-57803181 days apartImageMagick (WriteBMPImage): 32-bit integer overflow when writing BMP scanline stride → heap buffer overflow
    35Monitor
  • CVE-2026-3093115 days apartImageMagick has a heap-based buffer overflow in UHDR encoder
    31Monitor

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
Low
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (3 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records