CVE-2019-25689

Name: CVE-2019-25689
Creator: NVD / NIST
Published: 2026-04-12T13:16:31.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.6/10EPSS 0.21%

Last modified Jun 17, 2026

CVE-2019-25689 is a high-severity vulnerability rated 8.6/10 on the CVSS scale. 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.. EPSS estimates a 0.21% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.8/10

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

CVSS 4.0

8.6/10

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.21%

10.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Socusoft	Html5 Video Player	1.2.5

References

http://www.html5videoplayer.net/download.htmlProduct
https://www.exploit-db.com/exploits/46279Exploit, VDB Entry
https://www.vulncheck.com/advisories/html5-video-player-local-buffer-overflow-non-sehThird Party Advisory

Timeline

Published: Apr 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2019-25689?

How severe is CVE-2019-25689?

CVE-2019-25689 has a CVSS score of 8.6/10 (HIGH severity). The EPSS model estimates a 0.21% probability of exploitation in the next 30 days.

How do I fix CVE-2019-25689?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-25689?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST