What’s Vulnerable › Vulnerabilities

CVE-2025-43966

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-04-21 · updated 2026-06-17
• Weakness: CWE-476

Description

libheif before 1.19.6 has a NULL pointer dereference in ImageItem_iden in image-items/iden.cc.

Affected products

• strukturag libheif: before 1.19.6 — fixed in 1.19.6

How to fix

Upgrade to a fixed version: strukturag libheif 1.19.6. Check the vendor advisory for mitigations.

References

• https://github.com/strukturag/libheif/commit/b38555387e4b5dcf036fe45b0c440aca19b7b69c
• https://github.com/strukturag/libheif/compare/v1.19.5...v1.19.6

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