CVE-2021-22159

HIGH

7.8

CVSS Score

Published: January 26, 2021 at 07:44 PM UTC

Updated: June 17, 2026 at 03:36 AM UTC

1 product affected across 1 vendorInsider Threat Management

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Severity

HIGH7.8

Exploit prediction

EPSS 0.3%

Description

Insider Threat Management Windows Agent Local Privilege Escalation Vulnerability The Proofpoint Insider Threat Management (formerly ObserveIT) Agent for Windows before 7.4.3, 7.5.4, 7.6.5, 7.7.5, 7.8.4, 7.9.3, 7.10.2, and 7.11.0.25 as well as versions 7.3 and earlier is missing authentication for a critical function, which allows a local authenticated Windows user to run arbitrary commands with the privileges of the Windows SYSTEM user. Agents for MacOS, Linux, and ITM Cloud are not affected.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Insider Threat Management · Proofpoint

95%

v < 7.4.37.10.0 ≤ v < 7.10.27.11.0.0 ≤ v < 7.11.0.257.5.0 ≤ v < 7.5.47.6.0 ≤ v < 7.6.57.7.0 ≤ v < 7.7.57.8.0 ≤ v < 7.8.47.9.0 ≤ v < 7.9.3

Affected range stops below 7.10.2, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.11.0.25, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.4.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.5.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.6.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.7.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.8.4, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.9.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.proofpoint.com/us/security/security-advisories

x_refsource_MISCVendor Advisory

Source: [email protected]

https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2021-0001

CVSS

7.8HIGH[email protected]

Attack Vector: LOCAL
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-306

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