Vulnerability · Published Dec 10, 2020 · Assigned by CERTVDE

CVE-2020-12516WAGO: PLC families 750-88x and 750-352 prone to DoS attack

High 7.5

In plain English

A high-severity uncontrolled resource consumption in 750-331/xxx-xxx from WAGO. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.9% (higher than 80% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)1.9%top 20.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

Older firmware versions (FW1 up to FW10) of the WAGO PLC family 750-88x and 750-352 are vulnerable for a special denial of service attack.

Affected products (as reported)

Vendor	Product	Versions
WAGO	750-331/xxx-xxx	FW1<=FW10
WAGO	750-352	FW1<=FW10
WAGO	750-829	FW1<=FW10
WAGO	750-831/xxx-xxx	FW1<=FW10
WAGO	750-852	FW1<=FW10
WAGO	750-880/xxx-xxx	FW1<=FW10
WAGO	750-881	FW1<=FW10
WAGO	750-882	FW1<=FW10
WAGO	750-885	FW1<=FW10
WAGO	750-889	FW1<=FW10

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://us-cert.cisa.gov/ics/advisories/icsa-20-308-01 x_refsource_MISC
https://cert.vde.com/en-us/advisories/vde-2020-042 x_refsource_CONFIRM