Pulse Secure Secure

CVE-2021-22900: Pulse Connect Secure Unrestricted File Upload

A vulnerability allowed multiple unrestricted uploads in Pulse Connect Secure before 9.1R11.4 that could lead to an authenticated administrator to perform a file write via a maliciously crafted archive upload in the administrator web interface.

Published

ExploitedYes, in CISA KEVAdded 3 Nov 2021
Ransomware useNot reportedPer CISA
SeverityHIGHCVSS 3.1 7.2
EPSS14%Chance of exploitation in 30 days
Public exploitNot tracked
FixSee advisory

Automatic summary from the vendor's CVE record. We haven't written a full analysis of this vulnerability yet.

Affected and fixed versions

Product / branchFixed in
Pulse Secure Secure Fixed in 9.1R11See the advisory

Always confirm against the vendor advisory, which lists every fixed hotfix.

What it is

A vulnerability allowed multiple unrestricted uploads in Pulse Connect Secure before 9.1R11.4 that could lead to an authenticated administrator to perform a file write via a maliciously crafted archive upload in the administrator web interface.

Exploitation

CISA lists this CVE as exploited in the wild since 3 Nov 2021.

Sources

KEV status, EPSS score and vendor data refreshed automatically, last on 13 Oct 2026.

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