CVE-2020-19596

Name: CVE-2020-19596
Creator: NVD / NIST
Published: 2021-04-05T21:15:13.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.29%

Last modified Jun 17, 2026

CVE-2020-19596 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username.. EPSS estimates a 1.29% chance of exploitation in the next 30 days.

Description

Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.29%

66.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-120

Affected Software

Vendor	Product	Versions	Update
Coreftp	Core Ftp	1.2	Build 583

References

https://www.0x90.zone/binary/reverse/exploitation/2020/08/16/CoreFTPServerRCE.htmlExploit, Third Party Advisory
https://www.0x90.zone/binary/reverse/exploitation/2020/08/16/CoreFTPServerRCE.htmlExploit, Third Party Advisory

Timeline

Published: Apr 5, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-19596?

Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username.

How severe is CVE-2020-19596?

CVE-2020-19596 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.29% probability of exploitation in the next 30 days.

How do I fix CVE-2020-19596?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-19596?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST