Enumeration of valid user names
Priority LOW 30CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-203.
Summary
Due to improper authentication mechanism an unauthenticated remote attacker can enumerate valid usernames.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00414 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Franka Robotics | Franka Emika Robot | 0.0.0 – 4.0.3 | — | No fix listed | CNA |
- Franka Emika Robot VendorFranka Robotics Affected 0.0.0 – 4.0.3 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-47664
- 2026-10-03 Alias added: GHSA-547h-g7h3-f28q
References
More Franka Robotics vulnerabilities
- TI-2021-22298 Unauthenticated remote shutdown of the cobot CVSS 3.1HIGH 7.5
- TI-2021-22299 Improper session handling CVSS 3.1HIGH 8.1
Sources
- CVE-2021-47664 · CVE Program
- CVE-2021-47664 · NVD
- FIRST EPSS
- GHSA-547h-g7h3-f28q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences