CVE-2024-21640 json
OOB Access in CefVideoConsumerOSR::OnFrameCaptured
published 2024-01-13 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-19278
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- chromiumembedded chromium_embedded_framework 2024-01-05
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.55% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/chromiumembedded/cef/security/advisories/GHSA-3h3j-38xq-v7hh referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H |
Affected products
- chromiumembedded cef
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
Sources
- CVE List CVE-2024-21640
- NVD CVE-2024-21640
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