CVE-2020-10657

Name: CVE-2020-10657
Creator: NVD / NIST
Published: 2021-01-06T14:15:13.563+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.54%

Last modified Jun 17, 2026

CVE-2020-10657 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.9.1 contains a vulnerability in the ITM web console's ImportAlertRules feature. The vulnerability allows a remote attacker (with admin or config-admin privileges in the console) to execute arbitrary code with local administrator privileges. EPSS estimates a 2.54% chance of exploitation in the next 30 days.

Description

The Proofpoint Insider Threat Management Server (formerly ObserveIT Server) before 7.9.1 contains a vulnerability in the ITM web console's ImportAlertRules feature. The vulnerability allows a remote attacker (with admin or config-admin privileges in the console) to execute arbitrary code with local administrator privileges. The vulnerability is caused by improper deserialization.

Metrics

CVSS 3.1

7.2/10

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.54%

83.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-502

Affected Software

Vendor	Product	Versions
Proofpoint	Insider Threat Management Server	< 7.9.1

References

https://www.proofpoint.com/us/blogProduct
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0003Vendor Advisory
https://www.proofpoint.com/us/blogProduct
https://www.proofpoint.com/us/security/security-advisories/pfpt-sa-2020-0003Vendor Advisory

Timeline

Published: Jan 6, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-10657?

How severe is CVE-2020-10657?

CVE-2020-10657 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.54% probability of exploitation in the next 30 days.

How do I fix CVE-2020-10657?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-10657?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST