CVE-2020-12339Network attack vector

Privilege escalation via undisclosed API control-flow flaw

Published Feb 17, 2021 · Updated Aug 4, 2024

Control-flow flaw in Intel Collaboration Suite for WebRTC before 4.3.1 allows remote authenticated users to escalate privileges via its API. Intel identifies insufficient control-flow management in the API but does not disclose the affected endpoint, request field, or incorrect transition. Network access, authentication, and user interaction are required, and the published record does not identify the privileges obtained.

CVSS severity6.5
Medium
EPSS probability1.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Control-flow flaw in Intel Collaboration Suite for WebRTC before 4.3.1 allows remote authenticated users to escalate privileges via its API. Intel identifies insufficient control-flow management in the API but does not disclose the affected endpoint, request field, or incorrect transition. Network access, authentication, and user interaction are required, and the published record does not identify the privileges obtained.

The record

CVE
CVE-2020-12339
Published
Feb 17, 2021
Updated
Aug 4, 2024
Vendor
Intel Corporation
Product
Intel Collaboration Suite for WebRTC
Classifications
T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 17, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before version 4.3.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Intel Corporation · Intel Collaboration Suite for WebRTCversion=before version 4.3.1

Published CVSS scores

8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.5Intel CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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