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7.8High

Linux Linux Kernel

CVE-2022-26490

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.

What this means for your business

  • It affects Linux Kernel. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 0.4% chance of attack attempts being seen in the next 30 days, ranking above 36% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Linux Kernel, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS
7.8 (v3.1)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-120
Assigned by
cve@mitre.org

Dates

Published
2022-03-06
Last modified
2026-09-01
Sources
NVD

Affected products

  • Linux Linux Kernel- 4.9.309, 4.10 - 4.14.274, 4.15 - 4.19.237, 4.20 - 5.4.188, 5.5 - 5.10.109, 5.11 - 5.15.32, 5.16 - 5.16.18
  • Fedoraproject Fedora34, 35
  • Netapp H300s Firmwareall versions
  • Netapp H300sall versions
  • Netapp H500s Firmwareall versions
  • Netapp H500sall versions
  • Netapp H700s Firmwareall versions
  • Netapp H700sall versions
  • Netapp H300e Firmwareall versions
  • Netapp H300eall versions
  • Netapp H500e Firmwareall versions
  • Netapp H500eall versions

As listed in the NVD configuration data. Not a statement about your estate.

References