CVE-2021-22900

HIGH7.2

CISA KEV

Published 2021-05-27 · Updated 2026-06-17 · Source support@hackerone.com

Summary

CVE-2021-22900 is a high-severity (CVSS 7.2) vulnerability in Ivanti Pulse Connect Secure. CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by May 3, 2022. CISA does not currently list it as used in ransomware campaigns. Ivanti has 38 vulnerabilities in the KEV catalog, 12 of them linked to ransomware.

All 38 known-exploited Ivanti vulnerabilities →

Description

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.

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CWE-94CWE-669

CISA Known-Exploited Vulnerability

Product: Ivanti — Pulse Connect Secure

Name: Ivanti Pulse Connect Secure Unrestricted File Upload Vulnerability

Date added: 2021-11-03 · Due: 2022-05-03

Required action: Apply updates per vendor instructions.

References

View on NVD

More exploited Ivanti vulnerabilities

Most recently added to CISA KEV

CVE-2026-118527
Connect Secure — Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerability
added 2026-10-30
CVE-2026-111357
Connect Secure — Ivanti Connect Secure Missing Authentication for Critical Function Vulnerability
added 2026-10-30
CVE-2026-104935
Connect Secure — Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability
added 2026-10-13
CVE-2026-10520
Sentry — Ivanti Sentry OS Command Injection Vulnerability
added 2026-06-11
CVE-2026-6973
Endpoint Manager Mobile (EPMM) — Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability
added 2026-05-07
CVE-2026-1340
Endpoint Manager Mobile (EPMM) — Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability
added 2026-04-08

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