CVE-2021-34567

WAGO I/O-Check Service prone to Out-of-bounds Read

Description

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to provoke a denial of service and an limited out-of-bounds read.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.84% Top 30%
Vendor Advisory vde.com
Affected: WAGO 750-81xx/xxx-xxxFW
Affected: WAGO 750-82xx/xxx-xxx
Affected: WAGO 752-8303/8000-0002
Affected: WAGO 762-4xxx
Affected: WAGO 762-5xxx
Affected: WAGO 762-6xxx
Published at:
Updated at:

References

Link Tags
https://cert.vde.com/en/advisories/VDE-2020-036/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-34567?
CVE-2021-34567 has been scored as a high severity vulnerability.
How to fix CVE-2021-34567?
To fix CVE-2021-34567, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-34567 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-34567 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-34567?
CVE-2021-34567 affects WAGO 750-81xx/xxx-xxxFW, WAGO 750-82xx/xxx-xxx, WAGO 752-8303/8000-0002, WAGO 762-4xxx, WAGO 762-5xxx, WAGO 762-6xxx.
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