CVE-2026-27798 — Out-of-bounds Read in Imagemagick

CWE-125 — Out-of-bounds ReadCWE-126 — Buffer Over-read8 documents7 sources
Severity
7.1HIGHNVD
CNA4.0
EPSS
0.0%
top 97.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
ImagemagickDlemstra Magick.net
Timeline
PublishedFeb 26

Description

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 occurs when processing an image with small dimension using the `-wavelet-denoise` operator. Versions 7.1.2-15 and 6.9.13-40 contain a patch.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HExploitability: 1.8 | Impact: 5.2

Affected Packages4 packages

▶CVEListV5imagemagick/imagemagick< 6.9.13-40+1
▶NVDimagemagick/imagemagick7.0.0-0 — 7.1.2-15+1
▶Debianimagemagick/imagemagick< 8:6.9.11.60+dfsg-1.3+deb11u10+3
▶NVDdlemstra/magick.net< 14.10.3

Patches

Patch: github.com ↗

🔴Vulnerability Details

4
OSV
CVE-2026-27798: ImageMagick is free and open-source software used for editing and manipulating digital images↗2026-02-26
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GHSA
ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images↗2026-02-25
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CVEList
ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images↗2026-02-25
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OSV
ImageMagick: Heap Buffer Over-read in WaveletDenoise when processing small images↗2026-02-25
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📋Vendor Advisories

2
Red Hat
ImageMagick: ImageMagick: Information disclosure via heap buffer over-read when processing images↗2026-02-25
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Debian
CVE-2026-27798: imagemagick - ImageMagick is free and open-source software used for editing and manipulating d...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-27798 Impact, Exploitability, and Mitigation Steps | Wiz↗
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