CVE-2021-22737
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and...
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior that could cause unauthorized access of when credentials are discovered after a brute force attack.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior that could cause unauthorized access of when credentials are discovered after a brute force attack.
- Record
CVE-2021-22737- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-307
- Updated
- 2026-11-02
CVE List No score
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior that could cause unauthorized access of when credentials are discovered after a brute force attack.
- Record
CVE-2021-22737- Weakness
- CWE-307
- Updated
- 2026-11-02
EUVDEUVD-2021-9872 No score
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior that could cause unauthorized access of when credentials are discovered after a brute force attack.
- Record
EUVD-2021-9872- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5v8x-r44h-3xh9
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and...
Insufficiently Protected Credentials vulnerability exists in homeLYnk (Wiser For KNX) and spaceLYnk V2.60 and prior that could cause unauthorized access of when credentials are discovered after a brute force attack.
- Record
GHSA-5v8x-r44h-3xh9- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-307, CWE-522
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-22737 is a critical vulnerability (CVSS 9.8) in Schneider-electric Homelynk Firmware, published May 26, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.95%, the 61st percentile. No source names a fixed version.