Is CVE-2021-22158 actively exploited?

CVE-2021-22158 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-22158?

CVE-2021-22158 has a CVSS score of 7.2 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2021-22158?

Patch guidance is available from proofpoint security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-22158.

Fix CVE-2021-22158 - HIGH | CVEDatabase.com

Q: Which products are affected by CVE-2021-22158?

3 products: proofpoint insider threat management, proofpoint insider threat management, proofpoint insider threat management.

Description

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) is vulnerable to XML external entity (XXE) injection in the Web Console. The vulnerability requires admin user privileges and knowledge of the XML file's encryption key to successfully exploit. All versions before 7.11 are affected.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: high
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-611 · XML External Entity (XXE)

Metadata

Primary Vendor: PROOFPOINT
Published: 4/6/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

proofpoint : insider_threat_managementproofpoint : insider_threat_managementproofpoint : insider_threat_management

Remediation Guidance

Executive Summary

Cite this page

CVE-2021-22158. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-22158

View on NIST NVD

CVE-2021-22158 vulnerability