CVE-2021-20997
HIGHCVSS 7.5/10EPSS 1.02%
Last modified
CVE-2021-20997 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users.. EPSS estimates a 1.02% chance of exploitation in the next 30 days.
Description
In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wago | 0852-0303 Firmware | <= 1.2.3.s0 |
| Wago | 0852-1305 Firmware | <= 1.1.7.s0 |
| Wago | 0852-1505 Firmware | <= 1.1.6.s0 |
| Wago | 0852-1305\/000-001 Firmware | <= 1.0.4.s0 |
| Wago | 0852-1505\/000-001 Firmware | <= 1.0.4.s0 |
References
- https://cert.vde.com/en-us/advisories/vde-2021-013Third Party Advisory
- https://cert.vde.com/en-us/advisories/vde-2021-013Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-20997?
In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users.
How severe is CVE-2021-20997?
CVE-2021-20997 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.02% probability of exploitation in the next 30 days.
How do I fix CVE-2021-20997?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-20997?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST