What’s Vulnerable › Vulnerabilities

CVE-2020-10656

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-01-06 · updated 2026-06-17
• Weakness: CWE-502

Description

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.9.1 contains a vulnerability in the ITM application server's WriteWindowMouseWithChunksV2 API. The vulnerability allows an anonymous remote attacker to execute arbitrary code with local administrator privileges. The vulnerability is caused by improper deserialization.

Affected products

• Proofpoint Insider Threat Management: before 7.9.1 — fixed in 7.9.1

How to fix

Upgrade to a fixed version: Proofpoint Insider Threat Management 7.9.1. Check the vendor advisory for mitigations.

References

• https://www.proofpoint.com/us/blog
• https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0003
• https://www.proofpoint.com/us/blog
• https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0003

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