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High · 8.4 CVE-2019-25689 EUVD-2019-20124GHSA-3x22-75pm-vfvc

HTML5 Video Player 1.2.5 Local Buffer Overflow Non-SEH

Published Apr 12, 2026 · Updated Apr 15, 2026 · Assigned by VulnCheck

Description

HTML5 Video Player 1.2.5 contains a local buffer overflow vulnerability that allows attackers to execute arbitrary code by supplying an oversized key code string. Attackers can craft a malicious payload exceeding 997 bytes and paste it into the KEY CODE field in the Help Register dialog to trigger code execution and spawn a calculator process.

Affected products

VendorProductAffectedFixed
Html5Videoplayer HTML5 Video Player 1.2.5 —

References