CVE-2024-21640

OOB Access in CefVideoConsumerOSR::OnFrameCaptured

Chromium Embedded Framework (CEF) is a simple framework for embedding Chromium-based browsers in other applications.`CefVideoConsumerOSR::OnFrameCaptured` does not check `pixel_format` properly, which leads to out-of-bounds read out of the sandbox. This vulnerability was patched in commit 1f55d2e.

Affected

chromiumembedded · cef

CVSS v3.1 NVD

9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H

CVSS v3.1 GITHUB

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS

0.55% chance of exploitation in the next 30 days, 45th percentile

Published

2024-01-13

Updated

2025-06-17

Proof-of-concept exploits (1)

• chromiumembedded/cef/security/advisories/GHSA-3h3j-38xq-v7hh

Security advisories

• chromiumembedded/cef/commit/1f55d2e12f62cfdfbf9da6968fde2f928982670b

References

• CVE Record
• NVD entry