CVE-2022-36946

Name: CVE-2022-36946
Creator: NVD / NIST
Published: 2022-07-27T20:15:08.643+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.56%

Last modified Jun 17, 2026

CVE-2022-36946 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.. EPSS estimates a 5.56% chance of exploitation in the next 30 days.

Description

nfqnl_mangle in net/netfilter/nfnetlink_queue.c in the Linux kernel through 5.18.14 allows remote attackers to cause a denial of service (panic) because, in the case of an nf_queue verdict with a one-byte nfta_payload attribute, an skb_pull can encounter a negative skb->len.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.56%

91.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 2.6.14, < 4.9.326
Linux	Linux Kernel	>= 4.10, < 4.14.291
Linux	Linux Kernel	>= 4.15, < 4.19.255
Linux	Linux Kernel	>= 4.20, < 5.4.209
Linux	Linux Kernel	>= 5.5, < 5.10.135
Linux	Linux Kernel	>= 5.11, < 5.15.59
Linux	Linux Kernel	>= 5.16, < 5.18.16
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Netapp	Active Iq Unified Manager	All versions
Netapp	Solidfire \& Hci Management Node	All versions
Netapp	Solidfire \& Hci Storage Node	All versions
Netapp	Solidfire Enterprise Sds	All versions
Netapp	Hci Compute Node	All versions

References

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
https://lists.debian.org/debian-lts-announce/2022/09/msg00011.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
https://marc.info/?l=netfilter-devel&m=165883202007292&w=2Mailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0007/Third Party Advisory
https://www.debian.org/security/2022/dsa-5207Third Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=99a63d36cb3ed5ca3aa6fcb64cffbeaf3b0fb164
https://lists.debian.org/debian-lts-announce/2022/09/msg00011.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
https://marc.info/?l=netfilter-devel&m=165883202007292&w=2Mailing List, Patch, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0007/Third Party Advisory
https://www.debian.org/security/2022/dsa-5207Third Party Advisory

Timeline

Published: Jul 27, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-36946?

How severe is CVE-2022-36946?

CVE-2022-36946 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.56% probability of exploitation in the next 30 days.

How do I fix CVE-2022-36946?

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-2022-36946?

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

Scan your code now

Source: NVD / NIST