CVE-2022-49725

Kernel panic via overlapping i40e interface closure

Published Feb 26, 2025 · Updated Aug 5, 2026

A race in the i40e Ethernet driver in Linux allows local users to crash the kernel by overlapping a PF reset with an offline diagnostic. The reset preparation and diagnostic paths can invoke i40e_vsi_close concurrently, so the second closure starts before the first finishes. Local access with CAP_NET_ADMIN and an Intel adapter using i40e is required; successful exploitation interrupts availability by panicking the host.

CVSS severity7.8
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A race in the i40e Ethernet driver in Linux allows local users to crash the kernel by overlapping a PF reset with an offline diagnostic. The reset preparation and diagnostic paths can invoke i40e_vsi_close concurrently, so the second closure starts before the first finishes. Local access with CAP_NET_ADMIN and an Intel adapter using i40e is required; successful exploitation interrupts availability by panicking the host.

The record

CVE
CVE-2022-49725
Published
Feb 26, 2025
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 26, 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=4.2
  2. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <0a4e5a3dc5e41212870e6043895ae02455c93f63
  3. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <15950157e2c24865b696db1c9ccc72743ae0e967
  4. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <322271351b0e41565171e4cce70ea41854fac115
  5. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <5ba9956ca57e361fb13ea369bb753eb33177acc7
  6. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <814092927a215f5ca6c08249ec72a205e0b473cd
  7. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <fd5855e6b1358e816710afee68a1d2bc685176ca
  8. Affected versionversion=e17bc411aea8fbebc51857037f104ab09f765120 <ff6e03fe84bc917bb0c907d02de668c2fe101712

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.2; version=e17bc411aea8fbebc51857037f104ab09f765120 <0a4e5a3dc5e41212870e6043895ae02455c93f63; version=e17bc411aea8fbebc51857037f104ab09f765120 <15950157e2c24865b696db1c9ccc72743ae0e967; version=e17bc411aea8fbebc51857037f104ab09f765120 <322271351b0e41565171e4cce70ea41854fac115; version=e17bc411aea8fbebc51857037f104ab09f765120 <5ba9956ca57e361fb13ea369bb753eb33177acc7; version=e17bc411aea8fbebc51857037f104ab09f765120 <814092927a215f5ca6c08249ec72a205e0b473cd; version=e17bc411aea8fbebc51857037f104ab09f765120 <fd5855e6b1358e816710afee68a1d2bc685176ca; version=e17bc411aea8fbebc51857037f104ab09f765120 <ff6e03fe84bc917bb0c907d02de668c2fe101712

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 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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