Is CVE-2020-27602 actively exploited?

No active exploitation of CVE-2020-27602 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2020-27602 be exploited remotely?

Yes. CVE-2020-27602 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2020-27602?

CVE-2020-27602 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2020-27602

CRITICAL

CVE-2020-27602

CWE-74Published: September 29, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

BigBlueButton before 2.2.7 does not have a protection mechanism for separator injection in meetingId, userId, and authToken.

NVD Source

Risk Analysis

BigBlueButton is vulnerable to separator injection due to a lack of input validation in meeting identifiers and authentication tokens. This flaw could allow attackers to manipulate system processes or gain unauthorized access. The critical severity score indicates a high risk of exploitation.

No public exploit is known, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Upgrade to BigBlueButton version 2.2.7 or higher to ensure proper input sanitization.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-27602 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.