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CVE-2026-115340Progress Software WS_FTP Server cleartext storage of sensitive data

Schedule itHigh7.1EPSS not scored yet

CVE-2026-115340 is a cleartext storage of sensitive data in Progress Software WS_FTP Server, rated high (7.1 on CVSS 3.1).

Why this priority: High severity, with no exploitation signal yet.

Published · Updated · NVD status: Undergoing Analysis

What it is

Sensitive data is stored unencrypted where others can read it. Credentials are stored or sent in a way others can recover.

How it is reached

An attacker can exploit it by someone who can already run code or sign in on the machine, with an ordinary user account, and nobody has to click anything.

What an attacker gains

A successful attack can read the data it protects and change data or behaviour. In practice, this kind of flaw lets an attacker sign in with credentials the vendor shipped or stored unprotected.

Is it being exploited?

There is no public report of exploitation yet.

What to do

  1. Upgrade Progress Software WS_FTP Server to 2025.0.5 or later.
  2. Limit who can run code or sign in on the hosts that run it.

Description from NVD

Progress Software WS_FTP Server versions prior to 2025.0.5 on Windows may write sensitive user credential and session data to a temporary file during file transfer operations.

What this means for your architecture.

A CVE names a product. Whether it matters depends on where that product sits in your systems: what reaches it, which trust boundary it guards and what it can reach once compromised. Veriom maps your components, their relationships and your trust boundaries from your code, cloud and delivery evidence, so you can see where a component like this sits. The radar itself does not look at your systems.

Components it touches

  • Credentials kept in code, configuration, images or firmware. The flaw sits between a stored secret and anyone who can read where it is kept.

Trust boundaries in play

  • Host boundary. The attacker needs a foothold on the machine first; the flaw turns a small foothold into a bigger one.
  • Between a stored secret and anyone who can read where it is kept. An attacker who crosses it can sign in with credentials the vendor shipped or stored unprotected.

Questions to answer about your own systems

  • Where does Progress Software WS_FTP Server run in your systems, and at which version?
  • Which of those hosts also run code or users you do not fully trust?
  • What can it reach once compromised: which data stores, secrets and services?

Sources

  • CVE records and CVSS scores from the NVD CVE API. This product uses the NVD API but is not endorsed or certified by the NVD.
  • Exploitation status from CISA’s Known Exploited Vulnerabilities catalog.
  • Exploit likelihood from FIRST’s Exploit Prediction Scoring System (EPSS), refreshed daily.
  • Explanations are written by Veriom from fixed templates over each record’s data, not by a person reviewing each CVE. Descriptions are quoted from the records as published.