CVE-2026-53289

Host crash via unchecked failed VF rebuild

Published Jun 26, 2026 · Updated Jun 26, 2026

NULL pointer dereference in the Linux kernel allows local users to crash the host during an Intel ice virtual-function reset. ice_reset_all_vfs ignores a failed ice_vf_rebuild_vsi return, after which ice_vf_post_vsi_rebuild reaches ice_ena_vf_q_mappings and dereferences the cleared vsi->txq_map. The demonstrated path requires Intel ice SR-IOV virtual functions and a failed VSI rebuild while firmware is transitional during a locally initiated NVM update; the resulting kernel panic interrupts the host.

CVSS severity5.5
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel allows local users to crash the host during an Intel ice virtual-function reset. ice_reset_all_vfs ignores a failed ice_vf_rebuild_vsi return, after which ice_vf_post_vsi_rebuild reaches ice_ena_vf_q_mappings and dereferences the cleared vsi->txq_map. The demonstrated path requires Intel ice SR-IOV virtual functions and a failed VSI rebuild while firmware is transitional during a locally initiated NVM update; the resulting kernel panic interrupts the host.

The record

CVE
CVE-2026-53289
Published
Jun 26, 2026
Updated
Jun 26, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 26, 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=12bb018c538c3b9a050f69f62fa09fa6c9160bca <1e9185b13ce57b86844447e092e58abb3be849b1
  2. Affected versionversion=12bb018c538c3b9a050f69f62fa09fa6c9160bca <3ad2471e61e9f0c4d25046d08e3d747501c3b0dd
  3. Affected versionversion=12bb018c538c3b9a050f69f62fa09fa6c9160bca <429024f3a407e4137aee825c2a6be0aba857937d
  4. Affected versionversion=12bb018c538c3b9a050f69f62fa09fa6c9160bca <4c2ac52eeeb672624b06c7a135301d7b8a21d52e
  5. Affected versionversion=12bb018c538c3b9a050f69f62fa09fa6c9160bca <54ef02487914c24170c7e1c061e45212dc55365e
  6. Affected versionversion=12bb018c538c3b9a050f69f62fa09fa6c9160bca <acc76b97902757b63ba5136f787d107647236a19
  7. Affected versionversion=5.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=12bb018c538c3b9a050f69f62fa09fa6c9160bca <1e9185b13ce57b86844447e092e58abb3be849b1; version=12bb018c538c3b9a050f69f62fa09fa6c9160bca <3ad2471e61e9f0c4d25046d08e3d747501c3b0dd; version=12bb018c538c3b9a050f69f62fa09fa6c9160bca <429024f3a407e4137aee825c2a6be0aba857937d; version=12bb018c538c3b9a050f69f62fa09fa6c9160bca <4c2ac52eeeb672624b06c7a135301d7b8a21d52e; version=12bb018c538c3b9a050f69f62fa09fa6c9160bca <54ef02487914c24170c7e1c061e45212dc55365e; version=12bb018c538c3b9a050f69f62fa09fa6c9160bca <acc76b97902757b63ba5136f787d107647236a19; version=5.8

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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