CVE-2020-19596 json
Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username.
published 2021-04-05 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-11500
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
Buffer overflow vulnerability in Core FTP Server v1.2 Build 583, via a crafted username.
Exploit prediction
1.33% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- 0x90.zone https://www.0x90.zone/binary/reverse/exploitation/2020/08/16/CoreFTPServerRCE.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
0x90.zone
/binary/reverse/exploitation/2020/08/16/CoreFTPServerRCE.html
exploit, third-party-advisory
Sources
- CVE List CVE-2020-19596
- NVD CVE-2020-19596
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.