CVE-2022-34918

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-07-05. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this weekWeaponized
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 5%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nft_set_elem_init (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an unprivileged user namespace to obtain CAP_NET_ADMIN access.) This can be fixed in nft_setelem_parse_data in net/netfilter/nf_tables_api.c.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
66(Track)
EG Risk 66/100SSVC: 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
Severity78% × 45%
Exploitation65% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
91.9%
KEV
Not listed

Published

July 4, 2022

Last Modified

November 21, 2024

References (20)

Vendor Advisories for CVE-2022-34918(1)

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

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-image-lowlatency (5.15.0.43.41) @ jammy2026-05-25ubuntu
ubuntulinux-oem-5.17-tools-5.17.0-1014 (5.17.0-1014.15) @ jammy2026-05-25ubuntu
ubuntulinux-image-4.15.0-191-generic-lpae (4.15.0-191.202) @ bionic2026-05-25ubuntu
ubuntulinux-tools-5.15.0-1013-intel-iotg (5.15.0-1013.17) @ jammy2026-05-25ubuntu
ubuntulinux-tools-azure-fde (5.4.0.1089.94+cvm1.29) @ focal2026-05-25ubuntu
ubuntulowlatency (5.15.0-25) @ jammy2026-05-25ubuntu
ubuntulinux-tools-aws-hwe (4.15.0.1139.126) @ xenial2026-05-25ubuntu
ubuntulinux-modules-extra-5.15.0-1016-gcp (5.15.0-1016.21) @ jammy2026-05-25ubuntu
ubuntulinux-image-ibm-edge (5.4.0.1031.45) @ bionic2026-05-25ubuntu
ubuntulinux-image-lowlatency (4.4.0.230.236) @ xenial2026-05-25ubuntu
redhatkpatch-patch2022-09-20redhat
redhatkernel-0:5.14.0-70.26.1.el9_02022-09-20redhat
redhatkernel-rt-0:5.14.0-70.26.1.rt21.98.el9_02022-09-20redhat

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.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(13)

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 106 total refreshes for this CVE.

  1. 2026-07-23 02:12 UTCEG score recompute
  2. 2026-07-22 22:59 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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Publicly available exploits

(5 references)

Working exploit code is in the public domain (1 Metasploit module) (4 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCveritas501/CVE-2022-34918
    First seen Aug 2, 2022

    CVE-2022-34918 netfilter nf_tables 本地提权 POC

    Open source ↗
  • GitHub PoCmerlinepedra25/CVE-2022-34918-LPE-PoC
    First seen Jul 24, 2022
    Open source ↗
  • GitHub PoCmerlinepedra/CVE-2022-34918-LPE-PoC
    First seen Jul 24, 2022
    Open source ↗
  • GitHub PoCrandorisec/CVE-2022-34918-LPE-PoC
    First seen Jul 19, 2022
    Open source ↗
  • Metasploitexploit/linux/local/netfilter_nft_set_elem_init_privesc✓ verified
    First seen Feb 7, 2022

    Netfilter nft_set_elem_init Heap Overflow Privilege Escalation

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-34918?
CVE-2022-34918 is a high vulnerability published on July 4, 2022. An issue was discovered in the Linux kernel through 5.18.9. A type confusion bug in nftseteleminit (leading to a buffer overflow) could be used by a local attacker to escalate privileges, a different vulnerability than CVE-2022-32250. (The attacker can obtain root access, but must start with an…
When was CVE-2022-34918 disclosed?
CVE-2022-34918 was first published in the National Vulnerability Database on July 4, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-34918 actively exploited?
CVE-2022-34918 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-34918?
CVE-2022-34918 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-34918?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-34918, 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

Explore the affected products and dependency analysis for CVE-2022-34918

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