CVE-2019-25660
LanHelper 1.74 Denial of Service via Buffer Overflow
- State
- Published
- Severity
- 6.9 Medium
- Published
- Apr 5, 2026
- Updated
- Apr 6, 2026
- Reserved
- Apr 5, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 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 | VulnCheck |
| 3.1 | 6.2 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | VulnCheck |
Weaknesses
- CWE-787 Out-of-bounds Write
Affected Products
| Product | Versions |
|---|---|
LanHelperHainsoft |
|
References
- ExploitDB-46295exploit
- Official Product Homepageproduct
- VulnCheck Advisory: LanHelper 1.74 Denial of Service via Buffer Overflowthird-party-advisory
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