Integer overflow in ImageMagick
Priority LOW 37CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
A flaw was found in ImageMagick in versions 7.0.11, where an integer overflow in WriteTHUMBNAILImage of coders/thumbnail.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from this vulnerability is to system availability.
Why it matters now
EPSS 0.0238 83rd percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | ImageMagick | ImageMagick 7.0.11 | — | No fix listed | CNA |
- ImageMagick Vendor— Affected ImageMagick 7.0.11 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | before 7.0.11-0 | Vulnerable | ImageMagick |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 7.0.11-0 Vulnerable ·ImageMagick
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20312
- 2026-10-03 Alias added: GHSA-7cgc-x5j3-p7hx
References
Sources
- CVE-2021-20312 · CVE Program
- CVE-2021-20312 · NVD
- FIRST EPSS
- GHSA-7cgc-x5j3-p7hx · GitHub Advisory Database · CC BY 4.0
- CVE-2021-20312 · Red Hat security data · CC BY 4.0
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