CVE-2021-40843
7.3 · HIGHOverview
CVE-2021-40843 is a high-severity vulnerability affecting proofpoint insider_threat_management_server. It was published on October 13, 2021 and has a CVSS 3.1 base score of 7.3 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Proofpoint Insider Threat Management Server contains an unsafe deserialization vulnerability in the Web Console. An attacker with write access to the local database could cause arbitrary code to execute with SYSTEM privileges on the underlying server when a Web Console user triggers retrieval of that data. When chained with a SQL injection vulnerability, the vulnerability could be exploited remotely if Web Console users click a series of maliciously crafted URLs. All versions prior to 7.11.2 are affected.
Remediation
Check the references section for vendor advisories and patches from proofpoint. Update insider_threat_management_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| proofpoint | insider_threat_management_server | >= 0, < 7.11.2 | Affected |
Frequently Asked Questions
What is CVE-2021-40843?
CVE-2021-40843 is a high-severity vulnerability affecting proofpoint insider_threat_management_server. It was published on October 13, 2021 and has a CVSS 3.1 base score of 7.3 (HIGH).
How severe is CVE-2021-40843?
This vulnerability has a CVSS 3.1 base score of 7.3, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-40843?
Check the references section for vendor advisories and patches from proofpoint. Update insider_threat_management_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-40843?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-40843 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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