CVE-2026-23184

Invalid kernel-memory read via freed Binder transaction

Published Feb 14, 2026 · Updated Feb 14, 2026

Use-after-free in Linux Kernel 6.18 through 6.18.9 allows local users to trigger an invalid kernel-memory read through Binder. binder_netlink_report() dereferences a transaction after BR_TRANSACTION_PENDING_FROZEN even though a thawed target can consume and free it. A local user must send a one-way transaction to a frozen Binder target; the public record demonstrates an eight-byte stale read but no reliable privilege-escalation path.

CVSS severity7.8
High
EPSS probability0.13%
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 Linux Kernel 6.18 through 6.18.9 allows local users to trigger an invalid kernel-memory read through Binder. binder_netlink_report() dereferences a transaction after BR_TRANSACTION_PENDING_FROZEN even though a thawed target can consume and free it. A local user must send a one-way transaction to a frozen Binder target; the public record demonstrates an eight-byte stale read but no reliable privilege-escalation path.

The record

CVE
CVE-2026-23184
Published
Feb 14, 2026
Updated
Feb 14, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 14, 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=6.18
  2. Affected versionversion=63740349eba78f242bcbf60d5244d7f2b2600853 <5e8a3d01544282e50d887d76f30d1496a0a53562
  3. Affected versionversion=63740349eba78f242bcbf60d5244d7f2b2600853 <a6050dedb6f1cc23e518e3a132ab74a0aad6df90

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=6.18; version=63740349eba78f242bcbf60d5244d7f2b2600853 <5e8a3d01544282e50d887d76f30d1496a0a53562; version=63740349eba78f242bcbf60d5244d7f2b2600853 <a6050dedb6f1cc23e518e3a132ab74a0aad6df90

Published CVSS scores

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.

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

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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