CVE-2026-56373 PUBLISHED

ImageMagick - Use-After-Free Write in PDB Decoder

Assigner: VulnCheck
Reserved: 21.06.2026 Published: 10.07.2026 Updated: 10.07.2026

ImageMagick before 7.1.2-15 contains a use-after-free vulnerability in the PDB decoder that uses a stale pointer when memory allocation fails. Attackers can trigger this vulnerability by processing malicious PDB files to cause crashes or write a single zero byte to freed memory.

CVSS Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS Score: 6.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	High	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 3.7

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

Product Status

Vendor	ImageMagick
Product	ImageMagick
Versions	Default: unaffected affected from 0 to 7.1.2-15 (excl.) Version 7.1.2-15 is unaffected

Vendor	ImageMagick
Product	ImageMagick
Versions	Default: unaffected affected from 0 to 6.9.13-40 (excl.) Version 6.9.13-40 is unaffected

CVE-2026-56373 PUBLISHED

ImageMagick - Use-After-Free Write in PDB Decoder

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Problem Types