CVE-2021-21777

Public Exploit

Description

An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer 2.3 and development commit 8c73bf3. A specially crafted network request can lead to an out-of-bounds read.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.44%
Third-Party Advisory talosintelligence.com
Affected: n/a EIP Stack Group
Published at:
Updated at:

References

Link Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1234 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-21777?
CVE-2021-21777 has been scored as a critical severity vulnerability.
How to fix CVE-2021-21777?
To fix CVE-2021-21777, 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-2021-21777 being actively exploited in the wild?
It is possible that CVE-2021-21777 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-21777?
CVE-2021-21777 affects n/a EIP Stack Group.
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