Is CVE-2021-22900 actively exploited?

Yes. CVE-2021-22900 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-22900 be exploited remotely?

The attack vector of CVE-2021-22900 has not been classified yet.

What is the CVSS score of CVE-2021-22900?

CVE-2021-22900 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-22900

HIGHCISA KEVIN THE WILD

CVE-2021-22900

Published: November 3, 2021

EPSS:0.78%probability of exploitation in 30 daysPercentile:73.3th

Official Description

Ivanti Pulse Connect Secure contains an unrestricted file upload vulnerability that allows an authenticated administrator to perform a file write via a maliciously crafted archive upload in the administrator web interface.

NVD Source

CISA KEV Advisory

Ivanti Pulse Connect Secure Unrestricted File Upload Vulnerability

Added to KEV: 2021-11-03Federal patch deadline: 2022-05-03

Required Action (CISA)

Apply updates per vendor instructions.

Risk Analysis

This vulnerability in Ivanti Pulse Connect Secure allows an authenticated administrator to upload malicious files, potentially leading to system compromise. While it requires administrator authentication, its presence in CISA's KEV catalog and active exploitation in the wild indicate a critical need for immediate attention. The low EPSS score suggests that while it is being exploited, the overall likelihood of exploitation for all internet-facing systems is relatively low.

This vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog. Exploitation requires an authenticated administrator to upload a specially crafted archive.

Recommended Action

Apply the latest security updates from Ivanti for Pulse Connect Secure. Ensure administrative interfaces are properly secured and restrict access to trusted personnel only.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-22900 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-22900 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.