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CVE-2026-52296

7.1, high

FFmpeg Out-of-Bounds Read Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.1, high high CVSS v3.1
EPSS, next 30 days
0.2% higher than 4.4% of scored CVEs
Exploitation
No public evidence
Published
13 Sept 2026a month ago

Description

FFmpeg before 9.0 has an out-of-bounds read because of missing required padding in WMA extradata allocation paths in libavcodec/wmaenc.c.

Details

Vendor
FFmpeg
Product
FFmpeg
Weakness
CWE-125 (opens in a new tab)
Status
Analyzed
Updated
14 Oct 2026
Assigner
cve@mitre.org

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

References 3

Patches and fixes 2

Advisories 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other FFmpeg CVEs

Every FFmpeg CVE we hold

Same vendor in what we hold, not a known link between the flaws.

Beyond this page

Is CVE-2026-52296 in your network?

This page tells you how dangerous CVE-2026-52296 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 16 Oct 2026, not the live upstream state.