CVE-2019-25660

6.9 mediumEPSS 0.2%

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.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

5.5 medium

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

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 13% of CVEs (scores of 2026-10-31)
CWE: CWE-787
Published: 2026-04-05
Modified: 2026-07-24
Record from: the NVD, synced 2026-10-19

Affected

hainsoft:lanhelper

References

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

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