Is CVE-2021-22600 actively exploited?

CVE-2021-22600 has no public evidence of in-the-wild exploitation as of 2025-10-24.

What is the CVSS score for CVE-2021-22600?

CVE-2021-22600 has a CVSS score of 6.6 (MEDIUM severity). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H.

How do I patch CVE-2021-22600?

Patch guidance is available from netapp security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-22600.

CVE-2021-22600 - remediation guidance & executive summary

Q: Which products are affected by CVE-2021-22600?

16 products: netapp 8300 firmware, netapp 8700 firmware, netapp a400 firmware, netapp c400 firmware, linux linux kernel, and 11 more.

Description

A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:H
Attack Vector: local
Complexity: high
Privileges: low
User Action: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: high
Weaknesses: CWE-415 CWE-415

Metadata

Primary Vendor: NETAPP
Published: 1/26/2022
Last Modified: 10/24/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

netapp : 8300_firmwarenetapp : 8700_firmwarenetapp : a400_firmwarenetapp : c400_firmwarelinux : linux_kernellinux : linux_kernellinux : linux_kernellinux : linux_kernellinux : linux_kerneldebian : debian_linuxdebian : debian_linuxnetapp : h410c_firmwarenetapp : h300s_firmwarenetapp : h500s_firmwarenetapp : h700s_firmwarenetapp : h410s_firmware

Remediation Guidance

Executive Summary

View on NIST NVD