What is CVE-2022-22899?

CVE-2022-22899 is a medium-severity vulnerability in Coreftp Core FTP, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2022-02-17.

How severe is CVE-2022-22899?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Buffer overflow in Coreftp Core FTP

CVE-2022-22899

Core FTP / SFTP Server v2 Build 725 was discovered to allow unauthenticated attackers to cause a Denial of Service (DoS) via a crafted packet through the SSH service.

Vulnerability class: Buffer Overflow

Published 2022-02-17 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.2th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 57.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Coreftp Core FTP — versions 2.0

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

coreftp.com/forums/viewtopic.php (Vendor Advisory)
yoursecuritybores.me/coreftp-vulnerabilities/ (Exploit, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Product)

Frequently asked questions

What is CVE-2022-22899?: CVE-2022-22899 is a medium-severity vulnerability in Coreftp Core FTP, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2022-02-17.
How severe is CVE-2022-22899?: Medium severity. CVSS v3 base score is 5.5 out of 10.