CVE-2024-57895Network attack vector

Kernel crash via inconsistent timestamp attribute flags

Published Jan 15, 2025 · Updated Aug 5, 2026

Improper timestamp handling in Linux ksmbd 5.15 and later affected branches allows remote authenticated users to crash the kernel via SMB requests. set_file_basic_info passes ATTR_MTIME to notify_change without ATTR_CTIME, violating setattr_copy_mgtime's flag requirements when processing client-supplied timestamps. Exploitation requires a writable SMB session and an mgtime filesystem; panic_on_warn causes a file-server outage, while other configurations log a warning and permit mtime changes without ctime advancement.

CVSS severity7.1
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper timestamp handling in Linux ksmbd 5.15 and later affected branches allows remote authenticated users to crash the kernel via SMB requests. set_file_basic_info passes ATTR_MTIME to notify_change without ATTR_CTIME, violating setattr_copy_mgtime's flag requirements when processing client-supplied timestamps. Exploitation requires a writable SMB session and an mgtime filesystem; panic_on_warn causes a file-server outage, while other configurations log a warning and permit mtime changes without ctime advancement.

The record

CVE
CVE-2024-57895
Published
Jan 15, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2025CVE 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=0626e6641f6b467447c81dd7678a69c66f7746cf <1d7ee876b8b96efc14e177a7fe8d45ac25d68849
  2. Affected versionversion=0626e6641f6b467447c81dd7678a69c66f7746cf <21e46a79bbe6c4e1aa73b3ed998130f2ff07b128
  3. Affected versionversion=0626e6641f6b467447c81dd7678a69c66f7746cf <52cefcff6a4a814f4f8e357422fcfb71fd2ebf75
  4. Affected versionversion=0626e6641f6b467447c81dd7678a69c66f7746cf <c7ab587bd33ce45e2aa6b6d2d36be7ef0bd16614
  5. Affected versionversion=5.15

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0626e6641f6b467447c81dd7678a69c66f7746cf <1d7ee876b8b96efc14e177a7fe8d45ac25d68849; version=0626e6641f6b467447c81dd7678a69c66f7746cf <21e46a79bbe6c4e1aa73b3ed998130f2ff07b128; version=0626e6641f6b467447c81dd7678a69c66f7746cf <52cefcff6a4a814f4f8e357422fcfb71fd2ebf75; version=0626e6641f6b467447c81dd7678a69c66f7746cf <c7ab587bd33ce45e2aa6b6d2d36be7ef0bd16614; version=5.15

Published CVSS scores

7.1kernel.orgCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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