Vulnerability · Published May 24, 2021 · Assigned by CERTVDE
CVE-2021-21000WAGO: PFC200 Denial of Service due to the number of connections to the runtime
Medium 5.3
In plain English
A medium-severity resource allocation without limits in Series Ethernet Controller from WAGO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 64% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.0%top 35.9% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
On WAGO PFC200 devices in different firmware versions with special crafted packets an attacker with network access to the device could cause a denial of service for the login service of the runtime.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WAGO | Series PFC200 Controller | 750-823 – through FW07750-829 – through FW14750-831/000-00x – through FW14750-832/000-00x – through FW06750-852 – through FW14750-862 – through FW07750-880/0xx-xxx – through FW15750-881 – through FW14 |
| WAGO | Series Ethernet Controller | 750-8202/xxx-xxx – before 03.06.19 (18)750-8203/xxx-xxx – before 03.06.19 (18)750-8204/xxx-xxx – before 03.06.19 (18)750-8206/xxx-xxx – before 03.06.19 (18)750-8207/xxx-xxx – before 03.06.19 (18)750-8208/xxx-xxx – before 03.06.19 (18)750-8210/xxx-xxx – before 03.06.19 (18)750-8211/xxx-xxx – before 03.06.19 (18) |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://cert.vde.com/en-us/advisories/vde-2021-014 x_refsource_CONFIRM