CVE-2024-21639
Last modified
CVE-2024-21639 is a critical-severity vulnerability rated 9.6/10 on the CVSS scale. CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. EPSS estimates a 0.70% chance of exploitation in the next 30 days.
Description
CEF (Chromium Embedded Framework ) is a simple framework for embedding Chromium-based browsers in other applications. `CefLayeredWindowUpdaterOSR::OnAllocatedSharedMemory` does not check the size of the shared memory, which leads to out-of-bounds read outside the sandbox. This vulnerability was patched in commit 1f55d2e.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chromiumembedded | Chromium Embedded Framework | < 2024-01-05 |
References
- https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mgExploit, Vendor Advisory
- https://github.com/chromiumembedded/cef/security/advisories/GHSA-m375-jw5x-x8mgExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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