CVE-2019-25689

HIGH 8.4

HTML5 Video Player 1.2.5 Local Buffer Overflow Non-SEH

CVSS Score

8.4

EPSS Score

0.0%

EPSS Percentile

2th

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.

CWE	CWE-787
Vendor	html5videoplayer
Product	html5 video player
Published	Apr 12, 2026
Last Updated	Apr 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Html5Videoplayer / HTML5 Video Player

1.2.5

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/46279 html5videoplayer.net: http://www.html5videoplayer.net/download.html vulncheck.com: https://www.vulncheck.com/advisories/html5-video-player-local-buffer-overflow-non-seh

Credits

Dino Covotsos - Telspace Systems