CVE-2019-25689

HTML5 Video Player 1.2.5 Local Buffer Overflow Non-SEH

HIGH
7.8
CVSS Score
Published: April 12, 2026 at 12:28 PM UTC
Updated: June 17, 2026 at 02:32 AM UTC
3 products affected across 3 vendorsHTML5 Video PlayerHTML5 Video PlayerHTML5 Video Player

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-787

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