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Generated remediation guidance and an executive summary. No account required.
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.
Cite this page
CVE-2021-40843. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2021-40843
Use CWE-502, Proofpoint vendor hub and Insider Threat Management Server product page to widen CVE-2021-40843 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2021-40842, CVE-2020-10658 and CVE-2020-10656 for nearby disclosures in the same product family. Additional editorial context is available in Weekly Security Roundup: Navigating the April 2026 Threat Landscape and Critical Framework Exploits.