What is CVE-2025-29482?

CVE-2025-29482 is a medium-severity vulnerability in Struktur Libheif, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2025-04-07.

How severe is CVE-2025-29482?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Is CVE-2025-29482 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Struktur Libheif

CVE-2025-29482

Buffer Overflow vulnerability in libheif 1.19.7 allows a local attacker to execute arbitrary code via the SAO (Sample Adaptive Offset) processing of libde265.

Vulnerability class: Buffer Overflow

Published 2025-04-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (13.4th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Struktur Libheif — versions 1.19.7

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

lmarch2/poc

References

github.com/lmarch2/poc/blob/main/libheif/libheif.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-29482?: CVE-2025-29482 is a medium-severity vulnerability in Struktur Libheif, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2025-04-07.
How severe is CVE-2025-29482?: Medium severity. CVSS v3 base score is 6.2 out of 10.
Is CVE-2025-29482 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.