Medium severity · published Nov 18, 2025
CVE-2025-52639
HCL Connections is vulnerable to sensitive information disclosure
6.5
CVSS
0.2%
EPSS
No
On KEV
Description
HCL Connections is vulnerable to a sensitive information disclosure vulnerability which could allow a user to obtain sensitive information they are not entitled to, caused by improper rendering of application data.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CO
Connections · HCL Software
8.0 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-52639
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-52639
Vendor Advisory
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124241
More from Connections
5.7
CVE-2024-30118
HCL Connections is susceptible to a sensitive information disclosure vulnerability
5.4
CVE-2024-30112
HCL Connections is vulnerable to a cross-site scripting (XSS) vulnerability
4.6
CVE-2025-31961
HCL Connections is vulnerable to broken access control
4.6
CVE-2024-42188
HCL Connections is vulnerable to a broken access control vulnerability
4.3
CVE-2024-30106
HCL Connections is vulnerable to an information disclosure vulnerability