THREATPORT/VULNERABILITY/CVE-2022-36946
HIGH SEVERITY

CVE-2022-36946

Linux Kernel vulnerability

CVSS
7.5
EPSS
5.5%
EPSS pct
92th
Exploited
No known
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 vendor
Linux
Affected product
Linux Kernel
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2022-07-27

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.5% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2022-36946

  • Confirm whether Linux Linux Kernel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2022-36946.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-36946

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-36946 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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