CVE-2024-26898

Local code execution via premature device release

Published Apr 17, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel AoE driver allows local users to execute kernel code or crash the system through a race. aoecmd_cfg_pkts releases a net_device reference after packet setup even though the queued transmit path later dereferences the device. Exploitation requires local low-privileged access, the AoE driver, and winning the race; successful triggering permits kernel-level code execution or a system crash.

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

Use-after-free in the Linux kernel AoE driver allows local users to execute kernel code or crash the system through a race. aoecmd_cfg_pkts releases a net_device reference after packet setup even though the queued transmit path later dereferences the device. Exploitation requires local low-privileged access, the AoE driver, and winning the race; successful triggering permits kernel-level code execution or a system crash.

The record

CVE
CVE-2024-26898
Published
Apr 17, 2024
Updated
Aug 5, 2026
Vendor
Siemens
Product
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 17, 2024CVE 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=V3.1.0 <V3.1.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DP MFPversion=V3.1.0 <V3.1.5
Siemens · SIMATIC S7-1500 TM MFP - GNU/Linux subsystemversion=0 <*
The Linux Kernel Organization · Linuxversion=2.6.22; version=7562f876cd93800f2f8c89445f2a563590b24e09 <079cba4f4e307c69878226fdf5228c20aa1c969c; version=7562f876cd93800f2f8c89445f2a563590b24e09 <1a54aa506b3b2f31496731039e49778f54eee881; version=7562f876cd93800f2f8c89445f2a563590b24e09 <74ca3ef68d2f449bc848c0a814cefc487bf755fa; version=7562f876cd93800f2f8c89445f2a563590b24e09 <7dd09fa80b0765ce68bfae92f4e2f395ccf0fba4; version=7562f876cd93800f2f8c89445f2a563590b24e09 <a16fbb80064634b254520a46395e36b87ca4731e; version=7562f876cd93800f2f8c89445f2a563590b24e09 <ad80c34944d7175fa1f5c7a55066020002921a99; version=7562f876cd93800f2f8c89445f2a563590b24e09 <eb48680b0255a9e8a9bdc93d6a55b11c31262e62; version=7562f876cd93800f2f8c89445f2a563590b24e09 <f98364e926626c678fb4b9004b75cacf92ff0662; version=7562f876cd93800f2f8c89445f2a563590b24e09 <faf0b4c5e00bb680e8e43ac936df24d3f48c8e65
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPversion=V3.1.0 <V3.1.5
The Linux Kernel Organization · Linux Kernelversion=2.6.22; version=7562f876cd93 <079cba4f4e30; version=7562f876cd93 <1a54aa506b3b; version=7562f876cd93 <74ca3ef68d2f; version=7562f876cd93 <7dd09fa80b07; version=7562f876cd93 <a16fbb800646; version=7562f876cd93 <ad80c34944d7; version=7562f876cd93 <eb48680b0255; version=7562f876cd93 <f98364e92662; version=7562f876cd93 <faf0b4c5e00b
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP MFPversion=V3.1.0 <V3.1.5

Published CVSS scores

7.0Siemens ProductCERTCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.4OracleCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
7.8kernel.orgCVSS: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.

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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-416Use After Free
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

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Your stack

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