CVE-2026-21806HCL BigFix Service Management was affected with Admin Session Concurrency vulnerability (CVE-2026-21806)
Updated under an hour ago ()
Does this affect you?
It affects HCL Software HCL BigFix Service Management and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
HCL BigFix Service Management is affected by an Administrative Session Concurrency vulnerability. The application allows multiple simultaneous authenticated sessions for the same administrative account, which could enable an unauthorized attacker to predict or hijack valid session identifiers. Successful exploitation allows an attacker to compromise affected administrative sessions and execute actions with full privileged user permissions.
- CVSS
- 3.1 LOW (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-557
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- HCL
- NVD analysis
- Analyzed
- Record last updated
- Sep 18, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
HCL Software HCL BigFix Service Management hcl_software:hcl_bigfix_service_management (from the name) | Version 27 | CNA record |
hcltech bigfix_service_management hcltech:bigfix_service_management | 27 | NVD |
References
- https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133592vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.