UNKNOWN Microsoft PoC

CVE-2023-4863

Chromium: CVE-2023-4863 Heap buffer overflow in WebP

Microsoft Security Update 2023-Sep: Chromium: CVE-2023-4863 Heap buffer overflow in WebP

Affected Products

Microsoft Edge (Chromium-based)
WebP Image Extension
Microsoft Teams for Desktop
Microsoft Teams for Mac

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-4863
https://nvd.nist.gov/vuln/detail/CVE-2023-4863

Published: 2023-09-12 · Source: Microsoft · Feed updated: 2026-09-03

This unknown severity vulnerability was published on 2023-09-12 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 100.0% (top 0% of all CVEs by exploitation probability). Affected: Microsoft Edge (Chromium-based), WebP Image Extension, Microsoft Teams for Desktop and 1 more.

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