CVE-2024-45025Public exploit

Local service interruption via descriptor bitmap corruption

Published Sep 11, 2024 · Updated May 11, 2026

File-descriptor bitmap corruption in Linux 5.9 and later allows local users to interrupt service through close_range() with unsharing. copy_fd_bitmaps copies a rounded-up final word from full_fds_bits without clearing bits beyond the requested cutoff, leaving stale occupancy bits in the duplicated table. Exploitation requires a shared descriptor table, an upper bound above table capacity, and a lower bound immediately below open descriptors; false occupancy can misallocate descriptors and disrupt affected processes.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

File-descriptor bitmap corruption in Linux 5.9 and later allows local users to interrupt service through close_range() with unsharing. copy_fd_bitmaps copies a rounded-up final word from full_fds_bits without clearing bits beyond the requested cutoff, leaving stale occupancy bits in the duplicated table. Exploitation requires a shared descriptor table, an upper bound above table capacity, and a lower bound immediately below open descriptors; false occupancy can misallocate descriptors and disrupt affected processes.

The record

CVE
CVE-2024-45025
Published
Sep 11, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 11, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 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=278a5fbaed89dacd04e9d052f4594ffd0e0585de <5053581fe5dfb09b58c65dd8462bf5dea71f41ff
  2. Affected versionversion=278a5fbaed89dacd04e9d052f4594ffd0e0585de <8cad3b2b3ab81ca55f37405ffd1315bcc2948058
  3. Affected versionversion=278a5fbaed89dacd04e9d052f4594ffd0e0585de <9a2fa1472083580b6c66bdaf291f591e1170123a
  4. Affected versionversion=278a5fbaed89dacd04e9d052f4594ffd0e0585de <c69d18f0ac7060de724511537810f10f29a27958
  5. Affected versionversion=278a5fbaed89dacd04e9d052f4594ffd0e0585de <dd72ae8b0fce9c0bbe9582b9b50820f0407f8d8a
  6. Affected versionversion=278a5fbaed89dacd04e9d052f4594ffd0e0585de <fe5bf14881701119aeeda7cf685f3c226c7380df
  7. Affected versionversion=5.9

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=278a5fbaed89dacd04e9d052f4594ffd0e0585de <5053581fe5dfb09b58c65dd8462bf5dea71f41ff; version=278a5fbaed89dacd04e9d052f4594ffd0e0585de <8cad3b2b3ab81ca55f37405ffd1315bcc2948058; version=278a5fbaed89dacd04e9d052f4594ffd0e0585de <9a2fa1472083580b6c66bdaf291f591e1170123a; version=278a5fbaed89dacd04e9d052f4594ffd0e0585de <c69d18f0ac7060de724511537810f10f29a27958; version=278a5fbaed89dacd04e9d052f4594ffd0e0585de <dd72ae8b0fce9c0bbe9582b9b50820f0407f8d8a; version=278a5fbaed89dacd04e9d052f4594ffd0e0585de <fe5bf14881701119aeeda7cf685f3c226c7380df; version=5.9

Published CVSS scores

5.5NIST NVDCVSS: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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

Public exploit references

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Technologies

Your stack

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Your stack

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