Medium severity · published Sep 18, 2026
CVE-2026-56597
HCL BigFix Service Management is affected by multiple security vulnerabilities.
5.3
CVSS
0.2%
EPSS
No
On KEV
Description
HCL BigFix Service Management is affected by a Sensitive Information Leakage vulnerability, which could allow an unauthenticated attacker to extract internal IP addresses from the application's responses, enabling them to map the underlying network topology and identify potential internal targets.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HB
HCL BigFix Service Management · HCL Software
v27 · source: vendor
BS
Bigfix Service Management · Hcltech
23; 27 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-56597
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-56597
Vendor Advisory
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133917
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