CVE-2020-10656
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
An unauthenticated remote attacker can execute arbitrary code with local admin privileges via improper deserialization in the WriteWindowMouseWithChunksV2 API of Proofpoint Insider Threat Management Server before 7.9.1.
Vulnerability
The vulnerability resides in the WriteWindowMouseWithChunksV2 API endpoint of the Proofpoint Insider Threat Management Application Server (formerly ObserveIT Server). It is caused by improper deserialization of untrusted data, allowing an unauthenticated remote attacker to trigger arbitrary code execution. All versions prior to 7.9.1 are affected [2].
Exploitation
An attacker can exploit this vulnerability remotely without any authentication or user interaction. The attacker sends a specially crafted serialized object to the vulnerable API endpoint. The server improperly deserializes the payload, leading to code execution. No special network position beyond network access to the server is required [2].
Impact
Successful exploitation allows the attacker to execute arbitrary code with local administrator privileges on the target server. This results in a complete compromise of confidentiality, integrity, and availability (CIA) of the affected system [2].
Mitigation
The fixed version is Proofpoint Insider Threat Management Server 7.9.1. Customers already running this version require no action. Those on earlier versions should update immediately. Proofpoint released the advisory (PFPT-SA-2020-0003) on May 11, 2020. No workarounds or KEV listing are mentioned in the available references [2].
AI Insight generated on May 27, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- Proofpoint/Insider Threat Management Serverdescription
- Range: <7.9.1
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- www.proofpoint.com/us/blogmitrex_refsource_MISC
- www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0003mitrex_refsource_CONFIRM
News mentions
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