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ImageMagick has a heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds

🗓️ 13 Apr 2026 19:09:58Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 24 Views

ImageMagick viff encoder on thirty two bit builds has wraparound overflow causing out-of-bounds heap writes.

Related
Detection
Refs
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Family
attackerkb
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CVE-2026-33900
13 Apr 202620:50
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Astra Linux – Vulnerability in imagemagick
14 Sep 202612:01
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bdu_fstec
BDU FSTEC
ImageMagick VIFF Encoder DoS
8 Jul 202600:00
–bdu_fstec
circl
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CVE-2026-33900
1 May 202615:50
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cnnvd
CNNVD
ImageMagick security vulnerabilities
13 Apr 202600:00
–cnnvd
cve
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CVE-2026-33900
13 Apr 202620:50
–cve
cvelist
Cvelist
CVE-2026-33900 ImageMagick has a Heap overflow caused by integer overflow/wraparound in viff encoder on 32-bit builds
13 Apr 202620:50
–cvelist
debian
Debian
[SECURITY] [DLA 4559-1] imagemagick security update
1 May 202620:33
–debian
debian
Debian
[SECURITY] [DSA 6240-1] imagemagick security update
1 May 202615:32
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Vulners
Node
OR
magick.net-q8-x86Range<14.12.0nuget
magick.net-q8-anycpuRange<14.12.0nuget
magick.net-q16-x86Range<14.12.0nuget
magick.net-q16-hdri-x86Range<14.12.0nuget
magick.net-q16-hdri-anycpuRange<14.12.0nuget
magick.net-q16-anycpuRange<14.12.0nuget

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24 Apr 2026 20:47Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.15.9 - 7.5
EPSS0.00434
SSVC
24