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CVE-2020-8884

28
FAUCET Score

CVE-2020-8884 describes an improper deserialization vulnerability in the rcdsvc component of the Proofpoint Insider Threat Management Windows Agent (formerly ObserveIT Windows Agent) prior to version 7.9. This flaw allows remote authenticated users to execute arbitrary code with SYSTEM privileges. With a CVSS score of 8.8 (High), this vulnerability poses a significant risk, enabling complete compromise of confidentiality, integrity, and availability. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.3, < 7.4.2CPE matchmatch criteria
cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:windows:*:*
>= 7.5.0, < 7.5.3CPE matchmatch criteria
cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:windows:*:*
>= 7.6.0, < 7.6.4CPE matchmatch criteria
cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:windows:*:*
>= 7.7.0, < 7.7.4CPE matchmatch criteria
cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:windows:*:*
>= 7.8.0, < 7.8.3CPE matchmatch criteria
cpe:2.3:a:proofpoint:insider_threat_management:*:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.09%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0409 is in the 89th percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

proofpoint.com / us/blog
Vendor Advisory
proofpoint.com / us/security/security-advisories/pfpt-sa-2020-0002
Vendor Advisory