Read the docs
TI-2019-15713 Aliases CVE-2019-25660GHSA-fxf6-j3c6-2ghw

LanHelper 1.74 Denial of Service via Buffer Overflow

Priority MEDIUM 64CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00236 14th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HainsoftLanHelper1.74—No fix listedCNA
  • LanHelper VendorHainsoft Affected 1.74 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hainsoft:lanhelper:*:*:*:*:*:*:*:*up to 1.74VulnerableHainsoft
  • cpe:2.3:a:hainsoft:lanhelper:*:*:*:*:*:*:*:* Versions up to 1.74 Vulnerable ·Hainsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-25660
  2. 2026-10-03 Alias added: GHSA-fxf6-j3c6-2ghw

References

Exploit 1

Other 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences