Heap Buffer Overflow in Android iHEVC Decoder

Publication date: 2026-09-08

Last updated on: 2026-09-08

Assigner: Android (associated with Google Inc. or Open Handset Alliance)

Description

In ihevcd_get_tu_data_size of ihevcd_utils.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-09-08

Last Modified

2026-09-08

Generated

2026-09-09

AI Q&A

2026-09-09

EPSS Evaluated

N/A

NVD

CVE-2026-55294

Affected Vendors & Products

Currently, no data is known.

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Attack-Flow Graph

Executive Summary

This vulnerability is a heap buffer overflow in the ihevcd_get_tu_data_size function of ihevcd_utils.c. It allows a local attacker to write outside the intended memory area, potentially leading to privilege escalation without needing extra permissions or user interaction.

Impact Analysis

An attacker could exploit this to gain higher privileges on your system, allowing them to perform unauthorized actions. Since no user interaction is required, the risk is elevated as exploitation could occur silently in the background.

Mitigation Strategies

Apply the latest security patches from the vendor immediately. Disable or restrict access to vulnerable components if patches are unavailable. Monitor vendor advisories for updates and follow their recommended mitigation steps.

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