What is CVE-2019-20502?

CVE-2019-20502 is a high-severity vulnerability in Echatserver Easy Chat Server, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2020-03-05.

How severe is CVE-2019-20502?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2019-20502 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Echatserver Easy Chat Server

CVE-2019-20502

An issue was discovered in EFS Easy Chat Server 3.1. There is a buffer overflow via a long body2.ghp message parameter.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.6th percentile) — read the EPSS interpretation.

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.

Affected products

Echatserver Easy_chat_server — versions 3.1
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

s1kr10s/EasyChatServer-DOS

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-20502?: CVE-2019-20502 is a high-severity vulnerability in Echatserver Easy Chat Server, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2020-03-05.
How severe is CVE-2019-20502?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2019-20502 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.