What is CVE-2018-12113?

CVE-2018-12113 is a critical-severity vulnerability in Coreftp Core FTP, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-07-05.

How severe is CVE-2018-12113?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Coreftp Core FTP

CVE-2018-12113

Core FTP LE version 2.2 Build 1921 is prone to a buffer overflow vulnerability that may result in a DoS or remote code execution via a PASV response.

Vulnerability class: Buffer Overflow

Published 2018-07-05 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.069 (93.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.070 · newest: 0.069 · change: -0.001

Affected products

Coreftp Core FTP — versions 2.2

Weakness classification (CWE)

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory Buffer

References

gist.github.com/berkgoksel/e97b3f3b15e2f8293f649d4ebe6a6fc9 (Exploit, Third Party Advisory)
gist.github.com/berkgoksel/a654c8cb661c7a27a3f763dee92016aa (Exploit, Third Party Advisory)
packetstormsecurity.com/files/148383/Core-FTP-LE-2.2-Buffer-Overflow.html (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2018-12113?: CVE-2018-12113 is a critical-severity vulnerability in Coreftp Core FTP, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-07-05.
How severe is CVE-2018-12113?: Critical severity. CVSS v3 base score is 9.8 out of 10.