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NVD / CVE Program· CNA GitHub_M

CVE-2026-27799: ImageMagick has a heap Buffer Over-read in its DJVU image format handler

Noroxi assessment

Priority: Monitor (action score 17/100)

  • 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: 0.14% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: imagemagick (Debian:12) 8:6.9.11.60+dfsg-1.6+deb12u7; 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 (Debian:12) 8:6.9.11.60+dfsg-1.6+deb12u7; 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. 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.

MediumCVSS 4.4 · v3.1—No exploit Fix available
Published
Feb 25, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 3th percentile

Report tools

JSON

Action score

17

Monitor

Low priority for now.

CVSS
17 / 40 · 4.4 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
4.4
CNA · GitHub_M
4.0
0.4 point gap

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

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-2026-27799

When you'll hear from us

  • when it enters CISA KEV
  • 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
dlemstramagick.net

Affected versions

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

  • dlemstra magick.netbefore 14.10.3
  • imagemagick imagemagickbefore 6.9.13-40
  • imagemagick imagemagick7.0.0-0 and later · before 7.1.2-15

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

    • < 6.9.13-40, >= 7.0.0, < 7.1.2-15affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12imagemagickbefore 8:6.9.11.60+dfsg-1.6+deb12u78:6.9.11.60+dfsg-1.6+deb12u7
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
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5ImageMagickbefore 6.8.8.1-71.231.16.8.8.1-71.231.1

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 beforKEV
    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 imKEV
    75This week

Published before and after this one in the same product

  • ← EarlierCVE-2026-26983Feb 23, 2026 · ImageMagick: Invalid MSL <map> can result in a use after free
    21Monitor
  • ← EarlierCVE-2026-27798Feb 25, 2026 · ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images
    28Monitor
  • Later →CVE-2026-28493Mar 10, 2026 · ImageMagick has a Integer Overflow leading to out of bounds write in SIXEL decoder
    26Monitor

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
debian:imagemagick8:6.9.11.60+dfsg-1.6+deb12u7 · Debian:12Package 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)
suse:ImageMagick6.8.8.1-71.231.1 · SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5Package 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

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

  • CVE-2026-258972 days apartImageMagick has heap overflow in sun decoder on 32-bit systems that can result in out of bounds write
    39Monitor
  • CVE-2026-2387637 days apartHeap buffer overflow with attacker-controlled data in XBM parser
    39Monitor
  • CVE-2025-57807173 days apartImageMagick BlobStream Forward-Seek Under-Allocation
    39Monitor
  • CVE-2026-262842 days apartImageMagick has heap overflow in pcd decoder that leads to out of bounds read.
    36Monitor
  • CVE-2025-57803183 days apartImageMagick (WriteBMPImage): 32-bit integer overflow when writing BMP scanline stride → heap buffer overflow
    35Monitor
  • CVE-2026-257942 days apartImageMagick has heap-buffer-overflow via signed integer overflow in `WriteUHDRImage` when writing UHDR images with large dimensions
    32Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
low · data or configuration can be modified
Availability
low · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
Low
Availability impact
Low

Weakness class (CWE)

CWE-122 · Heap-based Buffer Overflow

CVSS vector

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

nvd-primary

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

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (2 more)

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

All records