Deserialization in Proofpoint Insider Threat Management Server

CVE-2020-10658

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

Vulnerability class: Insecure Deserialization

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.027 (85.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-10658: held from 0.027 to 0.027.

EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-10658?
CVE-2020-10658 is a critical-severity vulnerability in Proofpoint Insider Threat Management Server, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2021-01-06.
How severe is CVE-2020-10658?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-10658 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.