CRITICAL

CVE-2021-43267

CVSS v3

9.8

CRITICAL

EPSS Score

68.9%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

Technical details

Published
11/2/2021

Frequently asked questions

What is CVE-2021-43267?

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

Is CVE-2021-43267 actively exploited?

Active exploitation of CVE-2021-43267 has not been confirmed. The EPSS score is 68.9%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-43267?

CVE-2021-43267 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2021-43267 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.