Vulnerability · Published Aug 26, 2026 · Assigned by HCL
CVE-2026-21807HCL BigFix Quantum Risk Analyzer is affected by a stack-based buffer overflow
Low 3.9
In plain English
A low-severity stack buffer overflow in BigFix Quantum Risk Analyzer from HCLSoftware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)3.9Low
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
HCL BigFix Quantum Risk Analyzer binary lacks several critical, industry-standard hardening protections that could allow an attacker to cause a stack-based buffer overflow.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| HCLSoftware | BigFix Quantum Risk Analyzer | 2.0.1.47 |
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L