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CVE-2026-21807
HCL BigFix Quantum Risk Analyzer is affected by a stack-based buffer overflow
Low3.9EPSS 0.12%
- Published
- Updated
- Reserved
- Assigned by
- HCL
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.
Timeline
ID reserved
By HCL
- 8 months later
· 8 months later
Published
- 1 day later
· 1 day later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| HCLCNA (assigner) | 3.1 | Low3.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L |
| NVDNVD · Awaiting Analysis | 3.1 | Low3.9 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.9.
Weakness
Affected products
HCLSoftware · BigFix Quantum Risk Analyzer
- affected 2.0.1.47
References (1)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-21807)Record last updated .