🛡️ CVE-2026-30997 — ffmpeg

🟠 CVSS 7.5 — High ⚠️ Exploit Public CWE-125 NVD

7.5

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

An out-of-bounds read in the read_global_param() function (libavcodec/av1dec.c) of FFmpeg v8.0.1 allows attackers to cause a Denial of Service (DoS) via a crafted input.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Weakness class

CVE-2026-30997 is classified as CWE-125: Out-of-bounds Read. The code reads past the limits of a buffer, exposing adjacent memory contents or crashing the process.

Affected software

CVE-2026-30997 is recorded against 1 package.

ffmpeg (fixed in 8.0.1)

Timeline and source

Published on 13 April 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

excellent-oatmeal-319.notion.site
github.com

CVE-2026-30997 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Debian Ubuntu

Details

Severity HIGH

CVSS Score 7.5

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

CWE CWE-125

Public Exploit ⚠️ Yes

Source NVD

Published 2026-04-13

Updated 2026-08-11

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
ffmpeg	—	8.0.1

References

Exploit, Mitigation, Third Party Advisory https://excellent-oatmeal-319.notion.site/CVE-2026-30997-Out-of-Bounds-Access-a7929817b9794568b2f7774397c7d65f

Product https://github.com/FFmpeg/FFmpeg

🔗 NVD 🔗 Mitre

Similar Threats

Exploit Protection

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CVE-2026-30997 carries CVSS 7.5 High rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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