CVE-2026-28686: imagemagick Heap-based Buffer Overflow
CVSS: 6.8v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-28686DEBIAN-CVE-2026-28686GHSA-467j-76j7-5885
Published 09-03-2026Last modified 10-03-2026
Vulnerability summary
CVE-2026-28686 is a medium (CVSS 6.8) Heap-based Buffer Overflow vulnerability in imagemagick. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.
CVSS score
6.8/10
010
Medium · v3.1 (CVE.org)EPSS score
0.16%
0%100%
Low · +0.05 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
- 09-03-2026PublishedVulnerability first disclosed.
- 10-03-2026Last modifiedVulnerability information updated.
Description
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, A heap-buffer-overflow vulnerability exists in the PCL encode due to an undersized output buffer allocation. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41.
CVSS metrics
5 scores · 5 sources · 1 versionMedium 6.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:HSourcesAll 5 agree
- OSV · UbuntuEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- OSV · DebianEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- OSV · NugetEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
- NVDNIST6.8MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
+0.05 pp
From 0.11% on 18-09-2026
18-09-202618-10-2026
EPSS score0.16%
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-131Incorrect Calculation of Buffer SizeThe product does not correctly calculate the size to be used when allocating a buffer, which could lead to a buffer overflow.
Affected systems
NuGet19 products
- magick.net-q16-anycpu< 14.10.4
- Magick.NET-Q16-arm64< 14.10.4
- magick.net-q16-hdri-anycpu< 14.10.4
- Magick.NET-Q16-HDRI-arm64< 14.10.4
- Magick.NET-Q16-HDRI-OpenMP-arm64< 14.10.4
Debian1 product
- imagemagick< 8:6.9.11.60+dfsg-1.6+deb12u8 | < 8:7.1.1.43+dfsg1-1+deb13u7 | < 8:7.1.2.16+dfsg1-1
Imagemagick1 product
- imagemagick≥ 7.0.0, < 7.1.2-16 | < 6.9.13-41 | ≥ 7.0.0-0, < 7.1.2-16
Ubuntu1 product
- imagemagickAll versions (No fix recorded)
4 vendors · 22 products
References
7 links- github.com/ImageMagick/ImageMagick/security/advisories/GHSA-467j-76j7-5885X Refsource CONFIRMWEBVendor Advisory
