CVE-2022-25636

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-02-25. 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 weekElevated
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

net/netfilter/nf_dup_netdev.c in the Linux kernel 5.4 through 5.6.10 allows local users to gain privileges because of a heap out-of-bounds write. This is related to nf_tables_offload.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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%
Exploitation40% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
83.9%
KEV
Not listed

Published

February 24, 2022

Last Modified

November 21, 2024

References (18)

Vendor Advisories for CVE-2022-25636(6)

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

Patch Availability(10)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-headers-azure-fde (5.4.0.1072.75+cvm1.18) @ focal2026-05-26ubuntu
ubuntulinux-image-lowlatency (5.13.0.35.44) @ impish2026-05-26ubuntu
ubuntulinux-image-unsigned-5.13.0-1010-intel (5.13.0-1010.10) @ focal2026-05-26ubuntu
ubuntulowlatency-4.4 (4.4.0-168) @ xenial2026-05-26ubuntu
redhatredhat-virtualization-host-0:4.5.0-202205291010_8.62022-06-03redhat
redhatkernel-0:4.18.0-348.23.1.el8_52022-04-26redhat
redhatkpatch-patch2022-04-26redhat
redhatkernel-rt-0:4.18.0-348.23.1.rt7.153.el8_52022-04-26redhat
redhatkernel-0:4.18.0-305.45.1.el8_42022-04-20redhat
redhatkernel-rt-0:4.18.0-305.45.1.rt7.117.el8_42022-04-19redhat

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

(5)

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 / 44× 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 101 total refreshes for this CVE.

  1. 2026-07-23 02:09 UTCEG score recompute
  2. 2026-07-22 22:56 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  74. 2026-05-26 02:33 UTCEG score recompute
  75. 2026-05-26 02:33 UTCVendor advisory

Publicly available exploits

(3 references)

Working exploit code is in the public domain (3 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCveritas501/CVE-2022-25636-PipeVersion
    First seen Apr 5, 2022

    CVE-2022-25636 exploit rewritten with pipe primitive

    Open source ↗
  • GitHub PoCchenaotian/CVE-2022-25636
    First seen Mar 24, 2022

    CVE-2022-0185 analysis write up

    Open source ↗
  • GitHub PoCBonfee/CVE-2022-25636
    First seen Mar 7, 2022

    CVE-2022-25636

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2022-25636?
CVE-2022-25636 is a high vulnerability published on February 24, 2022. net/netfilter/nfdupnetdev.c in the Linux kernel 5.4 through 5.6.10 allows local users to gain privileges because of a heap out-of-bounds write. This is related to nftablesoffload.
When was CVE-2022-25636 disclosed?
CVE-2022-25636 was first published in the National Vulnerability Database on February 24, 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-2022-25636 actively exploited?
CVE-2022-25636 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 83.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-25636?
CVE-2022-25636 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-25636?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-25636, 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-2022-25636

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