CVE-2019-25660
CVE-2019-25660 is a medium-severity vulnerability in Hainsoft Lanhelper with a CVSS 3.x base score of 6.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: Medium (CVSS 3.x base score 6.2)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2019-20056
- Weakness: CWE-787
- Affected product: Hainsoft Lanhelper
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2019-25660?
- 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.
- How severe is CVE-2019-25660?
- CVE-2019-25660 has a CVSS 3.x base score of 6.2, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2019-25660 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2019-25660?
- CVE-2019-25660 affects Hainsoft Lanhelper. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2019-25660?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2019-25660 have an EU (EUVD) identifier?
- Yes. CVE-2019-25660 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-20056.
- When was CVE-2019-25660 published?
- CVE-2019-25660 was published on 2026-04-05 and last updated on 2026-06-17.
References
- http://www.hainsoft.com/
- https://www.exploit-db.com/exploits/46295
- https://www.vulncheck.com/advisories/lanhelper-denial-of-service-via-buffer-overflow
Affected products (1)
- cpe:2.3:a:hainsoft:lanhelper:*:*:*:*:*:*:*:*
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