Is CVE-2021-22894 actively exploited?

CVE-2021-22894 has no public evidence of in-the-wild exploitation as of 2025-12-18.

What is the CVSS score for CVE-2021-22894?

CVE-2021-22894 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-22894?

Patch guidance is available from ivanti security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-22894.

Fix CVE-2021-22894 - HIGH ivanti connect secure

Q: Which products are affected by CVE-2021-22894?

40 products: ivanti connect secure, ivanti connect secure, ivanti connect secure, ivanti connect secure, ivanti connect secure, and 35 more.

Description

A buffer overflow vulnerability exists in Pulse Connect Secure before 9.1R11.4 allows a remote authenticated attacker to execute arbitrary code as the root user via maliciously crafted meeting room.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-94 · Code Injection CWE-119 · Memory Buffer Errors

Metadata

Primary Vendor: IVANTI
Published: 5/27/2021
Last Modified: 12/18/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

ivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secureivanti : connect_secure

Remediation Guidance

Executive Summary

View on NIST NVD