ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-42167

ProFTPD ProFTPD Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Published Apr 28, 2026 · catalog updated Jul 24, 2026 · ProFTPD ProFTPD

Patch now

CVE-2026-42167 is in the CISA known-exploited catalog. Confirm ProFTPD ProFTPD against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
Severity
High8.1
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
7.31%
Remediation
Remediation guidance
Affected products
cpe proftpd/proftpd · vendor ProFTPD ProFTPD

mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM). VulnCheck canary evidence. Initial-access exploit intelligence.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe proftpd/proftpdversion unspecified
  • vendor ProFTPD ProFTPDversion unspecified

How to fix CVE-2026-42167

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2026-42167 is in the CISA known-exploited catalog. Confirm ProFTPD ProFTPD against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Affected version ranges are not on this record. Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

What should an analyst verify?

CWE-89: SQL Injection. EPSS 7.31%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 28, 2026 · NIST NVD

    Detected

    mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).

  2. Jun 1, 2026 · CISA KEV

    Known exploited

    Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.

  3. Jul 24, 2026 · NIST NVD

    Updated

    mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).

Sources

  • CVE.orgVulnerability recordCVE-2026-42167

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-42167

    30-day exploitation probability 7.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-42167

    mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2026-42167

    mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.