CVE-2021-27773

Name: CVE-2021-27773
Creator: NVD / NIST
Published: 2022-05-12T22:15:12.007+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.43%

Last modified Jun 17, 2026

CVE-2021-27773 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. This vulnerability allows users to execute a clickjacking attack in the meeting's chat.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.

Description

This vulnerability allows users to execute a clickjacking attack in the meeting's chat.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.43%

34.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Hcltech	Sametime	11.6

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430Vendor Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430Vendor Advisory

Timeline

Published: May 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-27773?

This vulnerability allows users to execute a clickjacking attack in the meeting's chat.

How severe is CVE-2021-27773?

CVE-2021-27773 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.43% probability of exploitation in the next 30 days.

How do I fix CVE-2021-27773?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-27773?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST