CVE-2026-119146: Buffer Overflow (CVSS 5.6)

Description

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.

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CVSS v3.1 Score

5.6

MEDIUM

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

EPSS — Exploit Prediction

0.0046

Probability of exploitation

0.40%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-120 CWE-120

References

Other References

https://abraxaslabs.tech/research/proftpd-rewrite-utf8trans https://github.com/proftpd/proftpd https://github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_rewrite.c#L2052 https://github.com/proftpd/proftpd/commit/502d280b8d0ef72e44c6dd0a35a9405af0a1e301 https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5 https://github.com/proftpd/proftpd/releases/tag/v1.3.9e https://www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-buffer-overflow-via-mod-rewrite-utf8trans-rewritemap

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 5.6 (MEDIUM).

How severe is CVE-2026-119146? +

CVE-2026-119146 has a CVSS v3.1 score of 5.6 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0046, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-119146? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-119146