CVE-2025-68365Network attack vector

Kernel panic and disclosure via uncleared name buffer

Published Dec 24, 2025 · Updated Dec 24, 2025

Uninitialized memory use in the NTFS3 filesystem allows remote attackers to disclose bounded heap data or panic the Linux kernel. In fs/ntfs3/inode.c, a name buffer returned by __getname() is used without clearing, so comparisons and metadata copies consume stale fields and padding. A guest-writable ksmbd share or anonymous/AUTH_SYS NFS export backed by a mounted NTFS3 volume is sufficient; no race or victim action is required.

CVSS severity8.2
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Uninitialized memory use in the NTFS3 filesystem allows remote attackers to disclose bounded heap data or panic the Linux kernel. In fs/ntfs3/inode.c, a name buffer returned by __getname() is used without clearing, so comparisons and metadata copies consume stale fields and padding. A guest-writable ksmbd share or anonymous/AUTH_SYS NFS export backed by a mounted NTFS3 volume is sufficient; no race or victim action is required.

The record

CVE
CVE-2025-68365
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 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?

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

  1. Affected versionversion=5.15
  2. Affected versionversion=82cae269cfa953032fbb8980a7d554d60fb00b17 <192e8ce302f14ac66259231dd10cede19858d742
  3. Affected versionversion=82cae269cfa953032fbb8980a7d554d60fb00b17 <a8a3ca23bbd9d849308a7921a049330dc6c91398

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=82cae269cfa953032fbb8980a7d554d60fb00b17 <192e8ce302f14ac66259231dd10cede19858d742; version=82cae269cfa953032fbb8980a7d554d60fb00b17 <a8a3ca23bbd9d849308a7921a049330dc6c91398

Published CVSS scores

8.2Linux CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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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