CVE-2021-20993
WAGO: Managed Switches: Exposure of sensitive information through directory listing
In multiple managed switches by WAGO in different versions the activated directory listing provides an attacker with the index of the resources located inside the directory.
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
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
WAGO: Managed Switches: Exposure of sensitive information through directory listing
In multiple managed switches by WAGO in different versions the activated directory listing provides an attacker with the index of the resources located inside the directory.
- Record
CVE-2021-20993- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2021-8402
In multiple managed switches by WAGO in different versions the activated directory listing provides an attacker with the index of the resources located inside the directory.
- Record
EUVD-2021-8402- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8xqw-xjxh-7m7j No score
In multiple managed switches by WAGO in different versions the activated directory listing...
In multiple managed switches by WAGO in different versions the activated directory listing provides an attacker with the index of the resources located inside the directory.
- Record
GHSA-8xqw-xjxh-7m7j- Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
In multiple managed switches by WAGO in different versions the activated directory listing provides an attacker with the index of the resources located inside the directory.
- Record
CVE-2021-20993- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- 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-2021-20993 is a medium vulnerability (CVSS 5.3) in Wago 0852-0303, published May 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.79%, the 56th percentile. No source names a fixed version.