CVE-2026-21809CWE-209

CVE-2026-21809

Low · published August 27, 2026

CVSS v3.1
3.9
EPSS
0%
Percentile
0.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
3.9 · LOW
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00091 · 0.4th percentile
Weakness
CWE-209 · Generation of Error Message Containing Sensitive Information
Published
2026-08-27T02:16Z
References (1)
https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0133289 · [email protected]
EPSS history
Timeline
  • 28 AUG 06:33Z
    EPSS moved — → 0%
    epss
  • 26 AUG 21:05Z
    HCL BigFix Quantum Risk Analyzer is affected by generating error messages with sensitive information
    cvelistv5