CVE-2022-48967Public exploit

Kernel memory corruption via unchecked NFC lengths

Published Oct 21, 2024 · Updated Aug 5, 2026

Out-of-bounds write in the Linux kernel NFC NCI stack allows local users to corrupt kernel memory through malformed target data. nci_add_new_protocol copies attacker-controlled NFC-A identifiers and NFC-B or NFC-F response data into fixed-size nfc_target arrays without checking their declared lengths. Low-privileged local access and an enabled NCI NFC path are required; triggering the defect can damage kernel state or interrupt the system.

CVSS severity7.1
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds write in the Linux kernel NFC NCI stack allows local users to corrupt kernel memory through malformed target data. nci_add_new_protocol copies attacker-controlled NFC-A identifiers and NFC-B or NFC-F response data into fixed-size nfc_target arrays without checking their declared lengths. Low-privileged local access and an enabled NCI NFC path are required; triggering the defect can damage kernel state or interrupt the system.

The record

CVE
CVE-2022-48967
Published
Oct 21, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-129
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 21, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <27eb2d7a1b9987b6d0429b7716b1ff3b82c4ffc9
  2. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <6778434706940b8fad7ef35f410d2b9929f256d2
  3. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <6b37f0dc0638d13a006f2f24d2f6ca61e83bc714
  4. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <908b2da426fe9c3ce74cf541ba40e7a4251db191
  5. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <cff35329070b96b4484d23f9f48a5ca2c947e750
  6. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <dbdcfb9f6748218a149f62468d6297ce3f014e9c
  7. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <e329e71013c9b5a4535b099208493c7826ee4a64
  8. Affected versionversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <f41547546db9af99da2c34e3368664d7a79cefae
  9. Affected versionversion=3.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <27eb2d7a1b9987b6d0429b7716b1ff3b82c4ffc9; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <6778434706940b8fad7ef35f410d2b9929f256d2; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <6b37f0dc0638d13a006f2f24d2f6ca61e83bc714; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <908b2da426fe9c3ce74cf541ba40e7a4251db191; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <cff35329070b96b4484d23f9f48a5ca2c947e750; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <dbdcfb9f6748218a149f62468d6297ce3f014e9c; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <e329e71013c9b5a4535b099208493c7826ee4a64; version=019c4fbaa790e2b3f11dab0c8b7d9896d77db3e5 <f41547546db9af99da2c34e3368664d7a79cefae; version=3.4

Published CVSS scores

7.0Siemens ProductCERTCVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
7.1NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
7.3SUSECVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-129Improper Validation of Array Index

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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