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CVE-2023-40044: Progress WS_FTP Server Deserialization of Untrusted Data Vulnerability

criticalknown exploitedpublic exploitCVE-2023-40044
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Progress WS_FTP Server contains a deserialization of untrusted data vulnerability in the Ad Hoc Transfer module that allows an authenticated attacker to execute remote commands on the underlying operating system.

CSIRTS triage

vendor: Progressproduct: WS_FTP ServerRemote code executionUnsafe deserialization
What
There is a deserialization of untrusted data vulnerability that allows an authenticated attacker to execute remote commands.
Who is affected
Authenticated users of Progress WS_FTP Server.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patch provided by Progress.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2023-10-05
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2023-40044

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2023-40044coverage & exploitation statusNVD · CVE.org

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