What’s Vulnerable › Vulnerabilities

CVE-2019-25689: HTML5 Video Player 1.2.5 Local Buffer Overflow Non-SEH

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-12 · updated 2026-06-17
• Weakness: CWE-787

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

• Html5Videoplayer HTML5 Video Player: 1.2.5

References

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

Get alerted when CVE-2019-25689 or the next vulnerability affects your stack