Vulnerability in Echatserver Easy Chat
CVE-2019-25613
Easy Chat Server 3.1 contains a denial of service vulnerability that allows remote attackers to crash the application by sending oversized data in the message parameter. Attackers can establish a session via the chat.ghp endpoint and then send a POST request to body2.ghp with an excessively large message parameter value to cause the service to crash.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Echatserver Easy Chat — versions 3.1
- Echatserver Easy Chat Server — versions 3.1
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/46806 (Exploit, VDB Entry, Third Party Advisory, exploit)
- www.echatserver.com (product, Broken Link)
- www.echatserver.com/ecssetup.exe (product, Broken Link)
- www.vulncheck.com/advisories/easy-chat-server-denial-of-service-via-message-par… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2019-25613?
- CVE-2019-25613 is a high-severity vulnerability in Echatserver Easy Chat, classified under Improper Verification of Source of a Communication Channel. CVSS score: 7.5/10. Published 2026-03-22.
- How severe is CVE-2019-25613?
- High severity. CVSS v3 base score is 7.5 out of 10.