CVE-2024-53103

Local privilege escalation via stale VSOCK transport pointer

Published Dec 2, 2024 · Updated Aug 5, 2026

Use-after-free in the Linux kernel Hyper-V VSOCK transport allows local users to execute code in kernel context through AF_VSOCK sockets. When hvs_destruct releases struct hvsock, it leaves vsk->trans referencing freed heap memory, and later receive or connection paths read and write through that stale pointer. An unprivileged process in a Hyper-V guest can drive the connect sequence to disclose kernel memory, corrupt kernel objects, hijack control flow, or panic the guest; the flaw does not cross into the host.

CVSS severity7.8
High
EPSS probability0.24%
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 Hyper-V VSOCK transport allows local users to execute code in kernel context through AF_VSOCK sockets. When hvs_destruct releases struct hvsock, it leaves vsk->trans referencing freed heap memory, and later receive or connection paths read and write through that stale pointer. An unprivileged process in a Hyper-V guest can drive the connect sequence to disclose kernel memory, corrupt kernel objects, hijack control flow, or panic the guest; the flaw does not cross into the host.

The record

CVE
CVE-2024-53103
Published
Dec 2, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 2, 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=4.14
  2. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <285266ef92f7b4bf7d26e1e95e215ce6a6badb4a
  3. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <414476c4fb11be070c09ab8f3e75c9ee324a108a
  4. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <4bdc5a62c6e50600d8a1c3e18fd6dce0c27c9497
  5. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <4fe1d42f2acc463b733bb42e3f8e67dbc2a0eb2d
  6. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <7cf25987820350cb950856c71b409e5b6eed52bd
  7. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <8621725afb38e111969c64280b71480afde2aace
  8. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <98d8dde9232250a57ad5ef16479bf6a349e09b80
  9. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <e0fe3392371293175f25028020ded5267f4cd8e3
  10. Affected versionversion=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <e629295bd60abf4da1db85b82819ca6a4f6c1e79

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.14; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <285266ef92f7b4bf7d26e1e95e215ce6a6badb4a; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <414476c4fb11be070c09ab8f3e75c9ee324a108a; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <4bdc5a62c6e50600d8a1c3e18fd6dce0c27c9497; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <4fe1d42f2acc463b733bb42e3f8e67dbc2a0eb2d; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <7cf25987820350cb950856c71b409e5b6eed52bd; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <8621725afb38e111969c64280b71480afde2aace; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <98d8dde9232250a57ad5ef16479bf6a349e09b80; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <e0fe3392371293175f25028020ded5267f4cd8e3; version=ae0078fcf0a5eb3a8623bfb5f988262e0911fdb9 <e629295bd60abf4da1db85b82819ca6a4f6c1e79

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8Linux kernel CNACVSS: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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