FTP Quota Accounting Bypass in Progress WS_FTP Server
- Exploited
- No known exploitation
- Fix
- Fixed in 2025.0.5
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 2025.0.5.
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 10/100 · provisional
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Progress Software's WS_FTP Server on Windows contains a flaw in how it tracks storage quotas. A remote attacker who has a low-privilege login with upload and delete permissions can exceed their storage limit, which could cause a denial of service.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
Incorrect quota accounting in Progress Software WS_FTP Server releases prior to 2025.0.5 on Windows could allow an authenticated user with upload and delete permissions to exceed storage quotas, potentially causing denial of service.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure3/25Reachable over the network · Unknown: No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity6.5/10CVSS 6.5
- No patch0/5No signal
What would change the score
- Would score about 65 if added to CISA KEV
- Would score about 60 if CISA's SSVC rates exploitation active
- Would score about 29 if advisories confirm default setups are exposed
What to do
Upgrade to a fixed version: 2025.0.5.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- Progress Software WS_FTP Server
From 2025.0.0 · fixed in 2025.0.5
Evidence 1
- Advisory
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-115336
Is CVE-2026-115336 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-115336?
WS_FTP Server: from 2025.0.0 before 2025.0.5.Source: cve.now feed data
How do I fix CVE-2026-115336?
Upgrade to a fixed version: 2025.0.5.Source: cve.now feed data