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CVE-2021-27772

7.1 · HIGH

Users are able to read group conversations without actively taking part in them.

Published May 12, 2022CWE-285EPSS 0.68%

Overview

CVE-2021-27772 is a high-severity vulnerability. It was published on May 12, 2022 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Users are able to read group conversations without actively taking part in them. Next to one to one conversations, users are able to start group conversations with multiple users. It was found possible to obtain the contents of these group conversations without being part of it. This could lead to information leakage where confidential information discussed in private groups is read by other users without the users knowledge.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refsupport.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430Refsupport.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27772?

CVE-2021-27772 is a high-severity vulnerability. It was published on May 12, 2022 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2021-27772?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-27772?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-27772?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27772 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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