High severity · published Apr 21, 2026
CVE-2025-31958
HCL BigFix Service Management (SM) is susceptible to HTTP Request Smuggling
8.2
CVSS
0.2%
EPSS
No
On KEV
Description
HCL BigFix Service Management is susceptible to HTTP Request Smuggling. HTTP request smuggling vulnerabilities arise when websites route HTTP requests through web servers with inconsistent HTTP parsing. HTTP Smuggling exploits inconsistencies in request parsing between front-end and back-end servers, allowing attackers to bypass security controls and perform attacks like cache poisoning or request hijacking.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BS
BigFix Service Management (SM) · HCLSoftware
23 · source: vendor
BS
Bigfix Service Management · Hcltech
23.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-31958
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-31958
Vendor Advisory
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0124209
More from BigFix Service Management (SM)
5.3
CVE-2025-31981
HCL BigFix Service Management (SM) Discovery is vulnerable to unenforced encryption