Heap-based buffer overflow in ImageMagick
Priority LOW 33CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Partial Red Hat: 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
A flaw was found in ImageMagick in MagickCore/quantum-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger a heap buffer overflow. This would most likely lead to an impact to application availability, but could potentially lead to an impact to data integrity as well. This flaw affects ImageMagick versions prior to 7.0.9-0.
Why it matters now
EPSS 0.01086 65th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial ImageMagick: 7.0.9-0Red Hat: 4 without a fix
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 | before 7.0.9-0 | 7.0.9-0 | Patch available | CNA |
- ImageMagick Vendor— Affected before 7.0.9-0 Fixed in 7.0.9-0 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* | before 6.9.11-47; 7.0.0-0 to before 7.0.9-0 | Vulnerable | ImageMagick |
- cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 6.9.11-47; 7.0.0-0 to before 7.0.9-0 Vulnerable ·ImageMagick
Remediation
- Fix · CNA ImageMagick Fixed in 7.0.9-0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Out of support scope |
| 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 |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2020-27752
- 2026-10-03 Alias added: GHSA-8h84-r7fq-5pcm
References
More Imagemagick vulnerabilities
- TI-2016-03144 The (1) EPHEMERAL, (2) HTTPS, (3) MVG, (4) MSL, (5) TEXT, (6) SHOW, (7) WIN, and (8) PLT… KEVCVSS 3.1HIGH 8.4
- TI-2023-16996 Improper input validation in ImageMagick CVSS 3.1CRITICAL 9.8
- TI-2016-03148 The (1) HTTP and (2) FTP coders in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1… KEVCVSS 3.1MEDIUM 5.5
- TI-2016-03145 The EPHEMERAL coder in ImageMagick before 6.9.3-10 and 7.x before 7.0.1-1 allows remote… KEVCVSS 3.1MEDIUM 5.5
- TI-2025-35690 ImageMagick BlobStream Forward-Seek Under-Allocation CVSS 3.1CRITICAL 9.8
- TI-2025-33094 ImageMagick has Stack Buffer Overflow in image.c CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-27752 · CVE Program
- CVE-2020-27752 · NVD
- FIRST EPSS
- GHSA-8h84-r7fq-5pcm · GitHub Advisory Database · CC BY 4.0
- CVE-2020-27752 · Red Hat security data · CC BY 4.0
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