Dashboard / CVE-2026-47178

CVE-2026-47178

HIGH
MEDIUM Priority: 0.01 BB Relevance: 41/100
Published: 2026-07-21 Modified: 2026-10-24 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Required
S: Unchanged
C: High
I: High
A: High

Description

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.19.0 through 1.21.2, a crafted HEIF file (uncompressed `unci` codec, tiled, component-interleaved, 4:2:0) triggers a heap out-of-bounds write in libheif's uncompressed tile decoder. The write overwrites the C++ vtable pointer of an adjacent `unc_decoder_component_interleave` object; the next virtual call dispatches to an attacker-chosen address. Version 1.22.0 patches the issue.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
struktur libheif 1.19.0 – 1.22.0

References & Advisories (1)

Bug Bounty Relevance

41 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.18%
Raw Score 0.001830
Percentile 7.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00183
2026-10-28
0.00183

Intelligence Sources

nvd ref →

External Links