CVE-2025-22058Public exploit

Packet drops via signed UDP accounting wraparound

Published Apr 16, 2025 · Updated Jun 11, 2026

Integer overflow in Linux kernel UDP memory accounting allows local users to cause packet drops via crafted socket operations. udp_destruct_common() passes an unsigned receive-queue byte total to the signed size parameter of udp_rmem_release(), where wraparound inflates udp_memory_allocated. Triggering the flaw requires permission to set SO_RCVBUFFORCE to INT_MAX; exhausted UDP accounting blocks further allocations and drops packets without reported code execution.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Linux kernel UDP memory accounting allows local users to cause packet drops via crafted socket operations. udp_destruct_common() passes an unsigned receive-queue byte total to the signed size parameter of udp_rmem_release(), where wraparound inflates udp_memory_allocated. Triggering the flaw requires permission to set SO_RCVBUFFORCE to INT_MAX; exhausted UDP accounting blocks further allocations and drops packets without reported code execution.

The record

CVE
CVE-2025-22058
Published
Apr 16, 2025
Updated
Jun 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, CWE-190, T1499.003
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=4.10
  2. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <13550273171f5108b1ac572d8f72f4256ab92854
  3. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <3836029448e76c1e6f77cc5fe0adc09b018b5fa8
  4. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <9122fec396950cc866137af7154b1d0d989be52e
  5. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <a116b271bf3cb72c8155b6b7f39083c1b80dcd00
  6. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <aeef6456692c6f11ae53d278df64f1316a2a405a
  7. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <c3ad8c30b6b109283d2643e925f8e65f2e7ab34e
  8. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <c4bac6c398118fba79e32b1cd01db22dbfe29fbf
  9. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <d9c8266ce536e8314d84370e983afcaa36fb19cf
  10. Affected versionversion=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <df207de9d9e7a4d92f8567e2c539d9c8c12fd99d

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.10; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <13550273171f5108b1ac572d8f72f4256ab92854; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <3836029448e76c1e6f77cc5fe0adc09b018b5fa8; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <9122fec396950cc866137af7154b1d0d989be52e; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <a116b271bf3cb72c8155b6b7f39083c1b80dcd00; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <aeef6456692c6f11ae53d278df64f1316a2a405a; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <c3ad8c30b6b109283d2643e925f8e65f2e7ab34e; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <c4bac6c398118fba79e32b1cd01db22dbfe29fbf; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <d9c8266ce536e8314d84370e983afcaa36fb19cf; version=f970bd9e3a06f06df8d8ecf1f8ad2c8615cc17eb <df207de9d9e7a4d92f8567e2c539d9c8c12fd99d

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.1Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
5.5UbuntuCVSS: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

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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-401Missing Release of Memory after Effective Lifetime
CWE-190Integer Overflow or Wraparound
T1499.003Application Exhaustion Flood

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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