CVE-2026-21809
HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing…
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
HCL BigFix Quantum Risk Analyzer has a certain validation process that provides overly descriptive error messages when it encounters malformed input which can allow an attacker to conduct more efficient reconnaissance and fine-tune automated fuzzing tools to produce valid input.
- CVSS 3.1
- 3.9 LOWCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
- EPSS
- 0.12% probability · 2th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-209
- Source
- psirt@hcl.com
EPSS 0.1% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.