CVE record · CVE-2017-20203

NetSarang v5.0 Malicious Backdoor Supply Chain Compromise

CVSS 9.3 CriticalCriticalEPSS 0.0067 · 52nd percentile

Critical, because:

CVSS score 9.3: 9.0 or more.

Published by the CVE Program (CNA: VulnCheck) at 9 Oct 2025, 17:01 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
NetSarang Computer, Inc.	Xmanager Enterprise	affected 5.0 Build 1232 Other versions: unaffected
NetSarang Computer, Inc.	Xmanager	affected 5.0 Build 1045 Other versions: unaffected
NetSarang Computer, Inc.	Xshell	affected 5.0 Build 1322 Other versions: unaffected
NetSarang Computer, Inc.	Xftp	affected 5.0 Build 1218 Other versions: unaffected
NetSarang Computer, Inc.	Xlpd	affected 5.0 Build 1220 Other versions: unaffected

Identifiers: CVE-2017-20203
CNA: VulnCheck
Weakness (CWE): CWE-506
Tags: NetSarang Computer, Inc. Xmanager Enterprise
NetSarang Computer, Inc. Xmanager
NetSarang Computer, Inc. Xshell
NetSarang Computer, Inc. Xftp
NetSarang Computer, Inc. Xlpd
CWE-506
Published: 9 Oct 2025
Updated: 21 Nov 2025

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.3	Critical	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N	CNA (VulnCheck)

CISA KEV Not listed.
EPSS 0.0067, the 52nd percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 9 Oct 2025. New records show when each source confirmed them.

Sources

References from the CNA

web.archive.org/web/20181022035109/https://www.netsarang.com/news/security_exploit_in_july_18_2017_build.html vendor-advisorypatch
usa.kaspersky.com/about/press-releases/shadowpad-attackers-hid-backdoor-in-software-used-by-hundreds-of-large-companies-worldwide technical-description
securelist.com/shadowpad-in-corporate-networks/81432/ technical-description
www.vulncheck.com/advisories/netsarang-malicious-backdoor-supply-chain-compromise third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.