CVE-2023-6270

Crash or code execution via premature reference release

Published Jan 4, 2024 · Updated Mar 24, 2026

Use-after-free in the Linux kernel AoE driver allows local users to crash the system or execute code through a network-device race. The aoecmd_cfg_pkts() success path calls dev_put() after packet initialization even though tx() later dereferences the released net_device from skbtxq. Local low-privileged access and the AoE driver are required; winning the race causes a kernel crash or kernel-context code execution.

CVSS severity7.0
High
EPSS probability0.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel AoE driver allows local users to crash the system or execute code through a network-device race. The aoecmd_cfg_pkts() success path calls dev_put() after packet initialization even though tx() later dereferences the released net_device from skbtxq. Local low-privileged access and the AoE driver are required; winning the race causes a kernel crash or kernel-context code execution.

The record

CVE
CVE-2023-6270
Published
Jan 4, 2024
Updated
Mar 24, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-416, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 4, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 24, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.0Red HatCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0UbuntuCVSS:3.1/AV:L/AC:H/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

CWE-416Use After Free
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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