CVE-2022-36946

HIGH
7.5
CVSS Score
Published: July 27, 2022 at 12:00 AM UTC
Updated: October 14, 2026 at 06:17 PM UTC
7 products affected across 3 vendorsLinux KernelDebian LinuxActive IQ Unified Manager

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Severity
HIGH7.5
Exploit prediction
EPSS 9%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.14 ≤ v < 4.9.3264.10 ≤ v < 4.14.2914.15 ≤ v < 4.19.2554.20 ≤ v < 5.4.2095.11 ≤ v < 5.15.595.16 ≤ v < 5.18.165.5 ≤ v < 5.10.135
Affected range stops below 4.14.291, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.255, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.326, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.10.135, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.59, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.18.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.209, so it looks safe — our inference, not a vendor statement
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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