ByteOS Network

CVE Vulnerability Details :

CVE-2026-47178

PUBLISHED

More Info Official Page

Assigner-GitHub_M

Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa

Published At-21 Jul, 2026 | 21:09

Updated At-22 Jul, 2026 | 15:30

▼CVE Numbering Authority (CNA)

libheif has Heap Out Of Bounds Write in unci subsystem

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.

Affected Products

Vendor

strukturag

Product

libheif

Versions

Affected

>= 1.19.0, < 1.22.0

Problem Types

Type	CWE ID	Description
CWE	CWE-787	CWE-787: Out-of-bounds Write

Type: CWE

CWE ID: CWE-787

Description: CWE-787: Out-of-bounds Write

Metrics

Version	Base score	Base severity	Vector
3.1	6.1	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

Version: 3.1

Base score: 6.1

Base severity: MEDIUM

Vector:

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

References

Hyperlink	Resource
https://github.com/strukturag/libheif/security/advisories/GHSA-5x55-x5pf-9c6g	x_refsource_CONFIRM

Hyperlink: https://github.com/strukturag/libheif/security/advisories/GHSA-5x55-x5pf-9c6g

Resource:

x_refsource_CONFIRM

▼Authorized Data Publishers (ADP)

CISA ADP Vulnrichment

Affected Products

Affected

Problem Types

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References

Affected Products

Metrics

Metrics Other Info

Impacts

Solutions

Configurations

Workarounds

Exploits

Credits

Timeline

Replaced By

Rejected Reason

References