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Heap buffer overflow in ImageMagick convex-hull handling on 32-bit

Priority LOW 10CWE-190Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Passive
Attack complexity
High
Attack requirements
Present
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Partial Red Hat: 2 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.

Summary

ImageMagick before 7.1.2-33 contains a heap buffer overflow on 32-bit systems when convex-hull information is requested. An attacker who supplies a crafted image can overwrite heap memory, which causes crashes or possibly code execution. The flaw is an integer overflow (CWE-190). A local attacker needs a user to process the crafted image.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

ImageMagick before 7.1.2-33 contains a heap buffer overflow vulnerability on 32-bit systems that allows attackers to overwrite heap memory when convex-hull information is requested. Attackers can supply crafted images processed with convex-hull calculations to corrupt heap memory, causing crashes or potential code execution.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00123 2nd percentileScored 2026-11-07
Fix Partial ImageMagick (ImageMagick): 7.1.2-33Red Hat: 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ImageMagickImageMagickbefore 7.1.2-337.1.2-33Patch availableCNA
  • ImageMagick VendorImageMagick Affected before 7.1.2-33 Fixed in 7.1.2-33 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:*before 7.1.2-33VulnerableImageMagick
  • cpe:2.3:a:imagemagick:imagemagick:*:*:*:*:*:*:*:* Versions before 7.1.2-33 Vulnerable ·ImageMagick

Remediation

ImageMagick is fixed in version 7.1.2-33. Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 7 are listed as affected, and the sources list no fixed version for them.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA ImageMagick (ImageMagick) Fixed in 7.1.2-33

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    ImageMagick 7.1.2-33

    20 records Highest priority Priority LOW 20 LOW

    Other records, highest priority first

    • TI-2026-80173 Memory leak in ImageMagick via crafted XMP profilePriority LOW 36
    • TI-2026-80172 Memory leak in ImageMagick XML parsing at nesting depth limitPriority LOW 36
    • TI-2026-80170 Memory leak in ImageMagick MAT decoder error pathPriority LOW 36

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 7AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-25 Threatist record created from CVE-2026-116153
  2. 2026-10-25 Affected versions changed · Red Hat
  3. 2026-10-25 CVSS score added · Red Hat
  4. 2026-10-26 Affected versions changed · Red Hat
  5. 2026-10-27 Alias added: GHSA-pxw8-3wjw-78x5
  6. 2026-10-29 CISA SSVC decision points changed

References

  • 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
See all 888 →

Sources