CVEFinder.io

CVE-2026-32739

đŸ”ļ medium
🔍 Scan for this CVE
Summary

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Box_stts::get_sample_duration(), consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and is triggered during file open (parsing) - before any user interaction or image decoding. The process stays alive (no crash, no error logged), making it invisible to crash-based monitoring. This iss

Description

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 800-byte HEIF sequence file causes an infinite loop in Box_stts::get_sample_duration(), consuming 100% CPU indefinitely with zero progress, leading to DoS. The loop has no iteration limit or timeout and is triggered during file open (parsing) - before any user interaction or image decoding. The process stays alive (no crash, no error logged), making it invisible to crash-based monitoring. This issue has been fixed in version 1.22.0.

CVSS Score
6.5
Medium
EPSS Score
0.1
Exploit Probability
Published Date
2026-05-19
First Seen: 2026-05-20
📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 47.8% of all 326,604 vulnerabilities in our database.

#170,379
Below average severity
Severity Percentile
đŸŽ¯ CISA SSVC Assessment Updated: May 20, 2026
🔍 Exploitation Status
Poc
Proof-of-concept available
⚙ī¸ Automatable
NO
Requires human interaction
đŸ’Ĩ Technical Impact
Partial
Limited system impact
SSVC data provided by CISA
Last Modified 2026-05-20
Source NVD 🔗
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE IDs (Weakness Types)
CWE-835

đŸ“Ļ Affected Products 1

Vendor Product Status Affected Versions
struktur libheif Affected
< 1.22.0

🔗 References 2

https://github.com/strukturag/libheif/releases/tag/v...
Release Notes
https://github.com/strukturag/libheif/security/advis...
Exploit Vendor Advisory

🔗 Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-41069 đŸ”ļ medium 6.5 0.0 libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file... 2026-05-22
CVE-2026-41071 ⚠ī¸ high 8.1 0.0 libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a crafted HEIF sequence file w... 2026-05-22
CVE-2026-32738 đŸ”ļ medium 6.5 0.1 libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and below, a crafted 792-byte HEIF sequen... 2026-05-19
CVE-2026-32740 ⚠ī¸ high 8.8 0.0 libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow (wr... 2026-05-19
CVE-2025-68431 đŸ”ļ medium 6.5 0.1 libheif is an HEIF and AVIF file format decoder and encoder. Prior to version 1.21.0, a crafted HEIF that exercises the ... 2025-12-29
CVE-2025-43966 ℹī¸ low 2.9 0.1 libheif before 1.19.6 has a NULL pointer dereference in ImageItem_iden in image-items/iden.cc. 2025-04-21
These CVEs affect the same products