Medium severity · published May 6, 2022
CVE-2021-27760
An issue was discovered in the Sametime chat feature in the Notes 11.0 - 11.0.1 FP4 clients
5.5
CVSS
0.7%
EPSS
No
On KEV
Description
An issue was discovered in the Sametime chat feature in the Notes 11.0 - 11.0.1 FP4 clients. An authenticated Sametime chat user could cause Remote Code Execution on another chat client by sending a specially formatted message through chat containing Javascript code.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 54% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HI
Hcl Inotes · Hcltech
11.0.0; 11.0.1; 11.0.1; 11.0.1; 11.0.1; 11.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-27760
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-27760
Third Party Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097670
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