CVE-2026-44331: proftpd

Awaiting analysis

AliasesUBUNTU-CVE-2026-44331DEBIAN-CVE-2026-44331ALPINE-CVE-2026-44331

Published 05-05-2026Last modified 06-05-2026

Vulnerability summary

CVE-2026-44331 is a high (CVSS 8.1) vulnerability in proftpd. EPSS estimates a 0.46% chance of exploitation in the next 30 days, higher than 39.5% of scored vulnerabilities.

Priority

Prioritisesevere

Severe, CVSS 8.1 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?

CVSS score

8.1/10

010

High · v3.1 (CVE.org)

EPSS score

0.46%

0%100%

Low · -0.05 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1

MGASA-2026-0200

Timeline

05-05-2026
PublishedVulnerability first disclosed.
06-05-2026
Last modifiedVulnerability information updated.

Description

In ProFTPD through 1.3.9a before 7666224, a SQL injection vulnerability in sqltab_fetch_clients_cb() in contrib/mod_wrap2_sql.c allows a remote attacker to inject arbitrary SQL commands via a crafted domain name that is accessed in a reverse DNS lookup. When "UseReverseDNS on" is enabled, the attacker-supplied hostname is passed unescaped into SQL queries. The character restrictions of DNS names may affect exploitability.

CVSS metrics

5 scores · 5 sources · 1 version

v3.18.1

EPSS trend

Probability

0.46%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

Decrease -0.05 pp

From 0.50% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-89Improper Neutralization of Special Elements used in an SQL CommandThe product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product

proftpd< 1.3.9b-r0

Debian1 product

proftpd-dfsgAll versions (No fix recorded) | < 1.3.8.c+dfsg-4+deb13u3 | < 1.3.9a~dfsg-1

Proftpd1 product

proftpd≤ 1.3.9a

Ubuntu1 product

proftpd-dfsgAll versions (No fix recorded)

4 vendors · 4 products

References

6 links