CVE-2024-21639
low-risk
Published 2024-01-12
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.
Do I need to act?
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0.21% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10
Medium
NETWORK
/ HIGH complexity
Affected Products (1)
Chromium Embedded Framework
Affected Vendors
References (4)
23
/ 100
low-risk
Severity
17/34 · Moderate
Exploitability
1/34 · Minimal
Exposure
5/34 · Minimal