CVE-2022-26490

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2022-03-07. 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 week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0

A fix is available — apply it.

st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
35.3%
KEV
Not listed

Published

March 6, 2022

Last Modified

June 25, 2025

References (14)

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-oem-5.14-tools-5.14.0-1033 (5.14.0-1033.36) @ focal2026-05-26ubuntu
ubuntulinux-image-lowlatency (4.4.0.224.231) @ xenial2026-05-26ubuntu
ubuntulinux-headers-azure-fde (5.4.0.1078.81+cvm1.22) @ focal2026-05-26ubuntu
ubuntulinux-tools-raspi-nolpae (5.15.0.1006.6) @ jammy2026-05-26ubuntu
ubuntulinux-image-lowlatency (5.15.0.27.28) @ jammy2026-05-26ubuntu
ubuntulinux-image-lowlatency (5.13.0.41.50) @ impish2026-05-26ubuntu
ubuntulinux-tools-aws-hwe (4.15.0.1128.118) @ xenial2026-05-26ubuntu

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.

All Vendor Advisories

(8)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

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 105 total refreshes for this CVE.

  1. 2026-07-24 14:15 UTCEPSS rescore
  2. 2026-07-23 14:16 UTCEPSS rescore
  3. 2026-07-23 02:09 UTCEG score recompute
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Frequently asked(5)

What is CVE-2022-26490?
CVE-2022-26490 is a high vulnerability published on March 6, 2022. st21nfcaconnectivityeventreceived in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVTTRANSACTION buffer overflows because of untrusted length parameters.
When was CVE-2022-26490 disclosed?
CVE-2022-26490 was first published in the National Vulnerability Database on March 6, 2022, with the most recent update on June 25, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-26490 actively exploited?
CVE-2022-26490 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 35.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-26490?
CVE-2022-26490 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-26490?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26490, 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.

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