Auth bypass in Hcl Software Sametime
CVE-2021-27772
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L.
EPSS exploit prediction
EPSS: 0.007 (49.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 49.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.007 · change: +0.000
Affected products
- Hcl Software Sametime — versions 11.6
- Hcltech Sametime — versions 11.6
Weakness classification (CWE)
References
- support.hcltechsw.com/csm (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-27772?
- CVE-2021-27772 is a high-severity vulnerability in Hcl Software Sametime, classified under Improper Authorization. CVSS score: 7.1/10. Published 2022-05-12.
- How severe is CVE-2021-27772?
- High severity. CVSS v3 base score is 7.1 out of 10.