CVE-2022-3977

Name: CVE-2022-3977
Creator: NVD / NIST
Published: 2023-01-12T19:15:24.327+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.25%

Last modified Jun 17, 2026

CVE-2022-3977 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.. EPSS estimates a 0.25% chance of exploitation in the next 30 days.

Description

A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.25%

16.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 5.18, < 5.19.16
Linux	Linux Kernel	>= 6.0, < 6.0.2

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3a732b46736cd8a29092e4b0b1a9ba83e672bf89Mailing List, Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20230223-0005/Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3a732b46736cd8a29092e4b0b1a9ba83e672bf89Mailing List, Patch, Vendor Advisory
https://security.netapp.com/advisory/ntap-20230223-0005/Third Party Advisory

Timeline

Published: Jan 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-3977?

How severe is CVE-2022-3977?

CVE-2022-3977 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.

How do I fix CVE-2022-3977?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-3977?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST