What is CVE-2019-25689?

CVE-2019-25689 is a high-severity vulnerability in Html5videoplayer Html5 Video Player, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-04-12.

How severe is CVE-2019-25689?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Html5videoplayer Html5 Video Player

CVE-2019-25689

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 int…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (4.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Html5videoplayer Html5 Video Player — versions 1.2.5

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

ExploitDB-46279 (exploit)
Official Product Homepage (product)
VulnCheck Advisory: HTML5 Video Player 1.2.5 Local Buffer Overflow Non-SEH (third-party-advisory)

Frequently asked questions

What is CVE-2019-25689?: CVE-2019-25689 is a high-severity vulnerability in Html5videoplayer Html5 Video Player, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-04-12.
How severe is CVE-2019-25689?: High severity. CVSS v3 base score is 8.4 out of 10.