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CVE-2017-16513: Ipswitch WS_FTP Professional before 12.6.0.3 has buffer overflows in the local search field and the backup loc

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HIGH 7.8UPGRADE

CVE-2017-16513 is a high-severity flaw (CVSS 7.8) affecting ws ftp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Ipswitch WS_FTP Professional before 12.6.0.3 has buffer overflows in the local search field and the backup locations field, aka WSCLT-1729.

Why this priority

  • High severity
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score7.8 (High)
Attack vectorLocal
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance2.2% (top 17%)
CISA exploited listNo
WeaknessCWE-119
Published2017-11-03
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: ipswitch

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

ipswitch ws ftp UPGRADE
Affected: < 12.6.0.3
Fixed in: 12.6.0.3
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy ws-ftp || rpm -q ws-ftp || ws-ftp --version
2. UPGRADE to 12.6.0.3 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade ws-ftp
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade ws-ftp
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-16513?

ws ftp: upgrade to 12.6.0.3. Exact commands for each OS are on this page.

Is CVE-2017-16513 being exploited?

CVE-2017-16513 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-16513 affect?

CVE-2017-16513 affects ws ftp. Severity is high (CVSS 7.8). Ipswitch WS_FTP Professional before 12.6.0.3 has buffer overflows in the local search field and the backup locations field, aka WSCLT-1729.

How urgent is CVE-2017-16513?

Priority 53/100. High severity; Public exploit reference

References

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