CVE-2021-38457
AUVESY Versiondog
The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.
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
CVE List Score used
AUVESY Versiondog
The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.
- Record
CVE-2021-38457- 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-284
- Updated
- 2026-11-02
EUVDEUVD-2021-24909
The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.
- Record
EUVD-2021-24909- 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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8mj9-mw5f-ccv3
The server permits communication without any authentication procedure, allowing the attacker to...
The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.
- Record
GHSA-8mj9-mw5f-ccv3- 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-284, CWE-306
- Updated
- 2026-11-02
NVD
The server permits communication without any authentication procedure, allowing the attacker to initiate a session with the server without providing any form of authentication.
- Record
CVE-2021-38457- 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
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-284, CWE-306
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-38457 is a critical vulnerability (CVSS 9.8) in Auvesy Versiondog, published October 22, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.33%, the 71st percentile. No source names a fixed version.