CVE-2019-25660

MEDIUM 6.2

LanHelper 1.74 Denial of Service via Buffer Overflow

CVSS Score

6.2

EPSS Score

0.0%

EPSS Percentile

2th

LanHelper 1.74 contains a local buffer overflow vulnerability that allows attackers to crash the application by sending excessively long input strings. Attackers can exploit the Form Send Message feature by pasting 6000 bytes of data into the Message text field to trigger a denial of service condition.

CWE	CWE-787
Vendor	hainsoft
Product	lanhelper
Published	Apr 5, 2026
Last Updated	Apr 6, 2026

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

Hainsoft / LanHelper

1.74

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/46295 hainsoft.com: http://www.hainsoft.com/ vulncheck.com: https://www.vulncheck.com/advisories/lanhelper-denial-of-service-via-buffer-overflow

Credits

Rafael Pedrero