CVE-2022-50841

Kernel memory corruption via wrapped attribute offset

Published Dec 30, 2025 · Updated Dec 30, 2025

Out-of-bounds memory access in Linux ntfs3 allows attackers to corrupt kernel memory when a crafted NTFS volume is mounted. In mi_enum_attr, 32-bit off+asize wraps for an oversized MFT attribute, bypasses the used-size check, and advances Add2Ptr beyond the MFT record. Mounting or automounting the volume is required; the resulting out-of-bounds read or write can disclose kernel memory, alter it, or crash the host.

CVSS severity7.8
High
EPSS probability0.23%
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 memory access in Linux ntfs3 allows attackers to corrupt kernel memory when a crafted NTFS volume is mounted. In mi_enum_attr, 32-bit off+asize wraps for an oversized MFT attribute, bypasses the used-size check, and advances Add2Ptr beyond the MFT record. Mounting or automounting the volume is required; the resulting out-of-bounds read or write can disclose kernel memory, alter it, or crash the host.

The record

CVE
CVE-2022-50841
Published
Dec 30, 2025
Updated
Dec 30, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1203
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0bb9f93ba63acfdb7c363d9f9fc2199fc6fa913d
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a1f0b873cf6ac1f00a749707d866494ed0708978
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d4489ba8fb806e07b43eecca5e9af5865d94cbf6
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e19c6277652efba203af4ecd8eed4bd30a0054c9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <0bb9f93ba63acfdb7c363d9f9fc2199fc6fa913d; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a1f0b873cf6ac1f00a749707d866494ed0708978; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d4489ba8fb806e07b43eecca5e9af5865d94cbf6; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e19c6277652efba203af4ecd8eed4bd30a0054c9

Published CVSS scores

7.8LinuxCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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