CVE-2022-48502Public exploit

Kernel-memory disclosure or crash via malformed EA records

Published May 31, 2023 · Updated Aug 3, 2024

Out-of-bounds read in Linux kernel ntfs3 before 6.2 allows local users to disclose kernel memory or crash the system via a crafted NTFS image. The ntfs_read_ea function accepts inconsistent EA_FULL size, name-length, and value-length fields from disk, which ntfs_set_ea then uses while processing extended-attribute records. The path requires local access that causes the kernel to process a malformed NTFS filesystem; consequences are limited to kernel-memory disclosure or a system crash.

CVSS severity7.1
High
EPSS probability0.52%
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 read in Linux kernel ntfs3 before 6.2 allows local users to disclose kernel memory or crash the system via a crafted NTFS image. The ntfs_read_ea function accepts inconsistent EA_FULL size, name-length, and value-length fields from disk, which ntfs_set_ea then uses while processing extended-attribute records. The path requires local access that causes the kernel to process a malformed NTFS filesystem; consequences are limited to kernel-memory disclosure or a system crash.

The record

CVE
CVE-2022-48502
Published
May 31, 2023
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.1UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

No sourced classifications are available.

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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