CVE-2026-53009

Kernel memory corruption via stale TX buffer pointer

Published Jun 24, 2026 · Updated Jun 24, 2026

Double-free in the ice network driver in the Linux Kernel allows local users to corrupt kernel memory during transmit-error cleanup. The ice_xmit_frame_ring error path frees an skb but leaves its first tx_buf pointer marked ICE_TX_BUF_SKB, so ring cleanup frees it again. Reachability requires local control of crafted offloaded transmit SKBs and the netdev lifecycle; the second free corrupts memory or crashes the host.

CVSS severity7.8
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Double-free in the ice network driver in the Linux Kernel allows local users to corrupt kernel memory during transmit-error cleanup. The ice_xmit_frame_ring error path frees an skb but leaves its first tx_buf pointer marked ICE_TX_BUF_SKB, so ring cleanup frees it again. Reachability requires local control of crafted offloaded transmit SKBs and the netdev lifecycle; the second free corrupts memory or crashes the host.

The record

CVE
CVE-2026-53009
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=4.17
  2. Affected versionversion=d76a60ba7afb89523c88cf2ed3a044ce4180289e <1a303baa715e6b78d6a406aaf335f87ff35acfcd
  3. Affected versionversion=d76a60ba7afb89523c88cf2ed3a044ce4180289e <4c08fc2119ef0281cfa2cee007acf0a251be55f2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=4.17; version=d76a60ba7afb89523c88cf2ed3a044ce4180289e <1a303baa715e6b78d6a406aaf335f87ff35acfcd; version=d76a60ba7afb89523c88cf2ed3a044ce4180289e <4c08fc2119ef0281cfa2cee007acf0a251be55f2

Published CVSS scores

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

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

T1068Exploitation for Privilege Escalation

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo