Is CVE-2019-25689 actively exploited?

No active exploitation of CVE-2019-25689 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2019-25689 be exploited remotely?

No. CVE-2019-25689 requires local access to exploit.

What is the CVSS score of CVE-2019-25689?

CVE-2019-25689 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2019-25689

CWE-787Published: April 12, 2026· Updated: Apr 17, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official 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.

NVD Source

Technical Analysis

CVE-2019-25689 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.