CVE-2026-64110

Local denial of service via unreleased socket buffers

Published Jul 19, 2026 · Updated Jul 19, 2026

Resource leakage in the Linux kernel igc driver allows local users to exhaust memory through repeated transmit-descriptor failures. igc_fpe_xmit_smd_frame() allocates an skb but leaves it unreleased when igc_fpe_init_tx_descriptor() returns an error. A local low-privileged user must repeatedly reach this failure path on an affected Intel adapter; sustained leakage can exhaust kernel memory and interrupt service.

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

Resource leakage in the Linux kernel igc driver allows local users to exhaust memory through repeated transmit-descriptor failures. igc_fpe_xmit_smd_frame() allocates an skb but leaves it unreleased when igc_fpe_init_tx_descriptor() returns an error. A local low-privileged user must repeatedly reach this failure path on an affected Intel adapter; sustained leakage can exhaust kernel memory and interrupt service.

The record

CVE
CVE-2026-64110
Published
Jul 19, 2026
Updated
Jul 19, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 19, 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=5422570c0010bb968738f9256eb2bf83e79b4d63 <3ebf056556138e74c640e6dc2b3848abd398b460
  2. Affected versionversion=5422570c0010bb968738f9256eb2bf83e79b4d63 <e935c37b8a94bb256fada6395a5d05e1c0c6bdaf
  3. Affected versionversion=5422570c0010bb968738f9256eb2bf83e79b4d63 <f1bafd35f11b3aca1c7bb38da173b8787364a04c
  4. Affected versionversion=6.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=5422570c0010bb968738f9256eb2bf83e79b4d63 <3ebf056556138e74c640e6dc2b3848abd398b460; version=5422570c0010bb968738f9256eb2bf83e79b4d63 <e935c37b8a94bb256fada6395a5d05e1c0c6bdaf; version=5422570c0010bb968738f9256eb2bf83e79b4d63 <f1bafd35f11b3aca1c7bb38da173b8787364a04c; version=6.16

Published CVSS scores

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

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

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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