Buffer overflow in Proftpd Project
CVE-2026-119146
ProFTPD before 1.3.9e and 1.3.10rc5 contains a buffer overflow vulnerability in the mod_rewrite int:utf8trans RewriteMap that allows remote attackers to overwrite static buffers. Attackers can send FTP command arguments longer than 1024 bytes, without authentication if pre-login commands are rewritten, to corrupt session memory and crash the session.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/proftpd/proftpd/commit/502d280b8d0ef72e44c6dd0a35a9405af0a1e301 (patch)
- github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_rewrite.c (technical-description)
- github.com/proftpd/proftpd/releases/tag/v1.3.9e (release-notes)
- github.com/proftpd/proftpd/releases/tag/v1.3.10rc5 (release-notes)
- abraxaslabs.tech/research/proftpd-rewrite-utf8trans (third-party-advisory)
- github.com/proftpd/proftpd (product)
- www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-buffer-overflo… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-119146?
- CVE-2026-119146 is a medium-severity vulnerability in Proftpd Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.6/10. Published 2026-10-30.
- How severe is CVE-2026-119146?
- Medium severity. CVSS v3 base score is 5.6 out of 10.