CVE-2021-47664 json
Enumeration of valid user names
published 2025-04-24 18 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-12117
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 36%
- public exploits
- 0
- none known
Summary
Due to improper authentication mechanism an unauthenticated remote attacker can enumerate valid usernames.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.41% chance of exploitation in the next 30 days, higher than 36% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
- Franka Robotics Franka Emika Robot
Classification
- Weakness
-
- CWE-203 Observable Discrepancy
References
Sources
- CVE List CVE-2021-47664
- NVD CVE-2021-47664
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.