CVE-2026-46520: imagemagick Heap-based Buffer Overflow
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2026-46520DEBIAN-CVE-2026-46520GHSA-36wm-hprc-mcf5
Published 10-06-2026Last modified 15-07-2026
Vulnerability summary
CVE-2026-46520 is a high (CVSS 7.5) Heap-based Buffer Overflow vulnerability in imagemagick. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 49.2% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (CVE.org)EPSS score
0.63%
0%100%
Low · +0.19 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 8 · Related 7Timeline
- 10-06-2026PublishedVulnerability first disclosed.
- 15-07-2026Last modifiedVulnerability information updated.
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, when reading multiple images with different dimensions an out of bounds heap write can occur. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.
CVSS metrics
5 scores · 5 sources · 1 versionHigh 7.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 5 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · NugetEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
+0.19 pp
From 0.44% on 20-09-2026
20-09-202620-10-2026
EPSS score0.63%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-122Heap-based Buffer OverflowA heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
- CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.
Affected systems
NuGet18 products
- magick.net-q16-anycpu< 14.13.1
- Magick.NET-Q16-arm64< 14.13.1
- magick.net-q16-hdri-anycpu< 14.13.1
- Magick.NET-Q16-HDRI-arm64< 14.13.1
- Magick.NET-Q16-HDRI-OpenMP-arm64< 14.13.1
Debian1 product
- imagemagick< 8:6.9.11.60+dfsg-1.6+deb12u10 | < 8:7.1.1.43+dfsg1-1+deb13u9 | < 8:7.1.2.23+dfsg1-1
Imagemagick1 product
- imagemagick< 7.1.2-23 | < 6.9.13-48 | ≥ 7.0.0-0, < 7.1.2-23
Ubuntu1 product
- imagemagickAll versions (No fix recorded)
4 vendors · 21 products
References
10 links- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-36wm-hprc-mcf5X Refsource CONFIRMREPORTWEBVendor Advisory
