CVE-2022-36946

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-07-28. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekElevated
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 6%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Track)
EG Risk 65/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
92.0%
KEV
Not listed

Published

July 27, 2022

Last Modified

May 5, 2025

References (12)

Vendor Advisories for CVE-2022-36946(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(26)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-intel-iotg-headers-5.15.0-1016 (5.15.0-1016.21) @ jammy2026-05-25ubuntu
ubuntulinux-image-virtual-hwe-18.04-edge (5.4.0.126.127) @ focal2026-05-25ubuntu
ubuntulinux-headers-oem-22.04 (5.17.0.1017.16) @ jammy2026-05-25ubuntu
ubuntulinux-image-unsigned-5.15.0-1016-gke (5.15.0-1016.19) @ jammy2026-05-25ubuntu
ubuntulinux-headers-gke-5.4 (5.4.0.1083.91) @ focal2026-05-25ubuntu
ubuntulinux-gcp-lts-20.04 (5.4.0.1089.94) @ focal2026-05-25ubuntu
ubuntulinux-headers-lowlatency-64k-hwe-20.04-edge (5.15.0.48.54~20.04.16) @ focal2026-05-25ubuntu
ubuntulinux-image-gcp-edge (5.4.0.1089.68) @ bionic2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1018-gcp (5.15.0-1018.24~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-buildinfo-4.15.0-1136-gcp (4.15.0-1136.152) @ bionic2026-05-25ubuntu
ubuntulinux-image-unsigned-5.15.0-1015-ibm (5.15.0-1015.17) @ jammy2026-05-25ubuntu
ubuntulinux-image-5.15.0-1018-kvm (5.15.0-1018.22) @ jammy2026-05-25ubuntu
ubuntulinux-image-5.4.0-1070-raspi (5.4.0-1070.80~18.04.1) @ bionic2026-05-25ubuntu
ubuntulinux-headers-azure-fde (5.4.0.1091.96+cvm1.31) @ focal2026-05-25ubuntu
ubuntulinux-image-lowlatency (4.4.0.234.240) @ xenial2026-05-25ubuntu
ubuntulinux-modules-extra-gkeop-5.15 (5.15.0.1003.5) @ jammy2026-05-25ubuntu
ubuntulinux-headers-5.15.0-1016-gke (5.15.0-1016.19~20.04.1) @ focal2026-05-25ubuntu
ubuntulinux-cloud-tools-4.4.0-1150-aws (4.4.0-1150.165) @ xenial2026-05-25ubuntu
ubuntulinux-buildinfo-5.14.0-1050-oem (5.14.0-1050.57) @ focal2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1018-oracle (5.15.0-1018.23) @ jammy2026-05-25ubuntu
ubuntulinux-image-4.15.0-1151-azure (4.15.0-1151.166~16.04.1) @ xenial2026-05-25ubuntu
redhatkernel-0:4.18.0-372.91.1.el8_62024-02-07redhat
redhatkernel-0:5.14.0-162.6.1.el9_12022-11-15redhat
redhatkernel-rt-0:5.14.0-162.6.1.rt21.168.el9_12022-11-15redhat
redhatkernel-0:4.18.0-425.3.1.el82022-11-08redhat
redhatkernel-rt-0:4.18.0-425.3.1.rt7.213.el82022-11-08redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Additional Vendor Advisories

(22)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 14× in last 7d / 50× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 108 total refreshes for this CVE.

  1. 2026-07-23 02:12 UTCEG score recompute
  2. 2026-07-22 23:00 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  13. 2026-07-16 23:39 UTCOSV refresh
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  1. 2026-07-09 19:08 UTCEPSS rescore
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  14. 2026-06-28 22:32 UTCOSV refresh
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  44. 2026-06-11 18:25 UTCOSV refresh
  45. 2026-06-11 13:58 UTCEPSS rescore
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  47. 2026-06-10 22:17 UTCEPSS rescore
  48. 2026-06-10 13:20 UTCEPSS rescore
  49. 2026-06-08 14:15 UTCEPSS rescore
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  66. 2026-05-31 00:15 UTCEPSS rescore
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Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCPwnzer0tt1/CVE-2022-36946
    First seen Jul 28, 2022

    CVE-2022-36946 linux kernel panic in netfilter_queue

    Open source ↗

Frequently asked(5)

What is CVE-2022-36946?
CVE-2022-36946 is a high vulnerability published on July 27, 2022. nfqnlmangle in net/netfilter/nfnetlinkqueue.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 nfqueue verdict with a one-byte nftapayload attribute, an skb_pull can encounter a negative skb->len.
When was CVE-2022-36946 disclosed?
CVE-2022-36946 was first published in the National Vulnerability Database on July 27, 2022, with the most recent update on May 5, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-36946 actively exploited?
CVE-2022-36946 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-36946?
CVE-2022-36946 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2022-36946?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-36946, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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