CVE-2024-50264Public exploit

Local privilege escalation via stale vsock transport pointer

Published Nov 19, 2024 · Updated Aug 5, 2026

Use-after-free in Linux kernel 4.8 through 6.12-rc7 allows local users to gain kernel privileges through AF_VSOCK loopback. virtio_transport_destruct frees the virtio_vsock_sock referenced by vsk->trans without clearing that pointer, allowing a loopback worker to read and write the reclaimed object. An unprivileged local account can race an interrupted connect() against transport reassignment; successful exploitation modifies kernel memory, while failed attempts can hang or panic the host.

CVSS severity7.8
High
EPSS probability0.35%
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 4.8 through 6.12-rc7 allows local users to gain kernel privileges through AF_VSOCK loopback. virtio_transport_destruct frees the virtio_vsock_sock referenced by vsk->trans without clearing that pointer, allowing a loopback worker to read and write the reclaimed object. An unprivileged local account can race an interrupted connect() against transport reassignment; successful exploitation modifies kernel memory, while failed attempts can hang or panic the host.

The record

CVE
CVE-2024-50264
Published
Nov 19, 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. Nov 19, 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=06a8fc78367d070720af960dcecec917d3ae5f3b <2a6a4e69f255b7aed17f93995691ab4f0d3c2203
  2. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <44d29897eafd0e1196453d3003a4d5e0b968eeab
  3. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <5f092a4271f6dccf88fe0d132475a17b69ef71df
  4. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <5f970935d09934222fdef3d0e20c648ea7a963c1
  5. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f
  6. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <b110196fec44fe966952004bd426967c2a8fd358
  7. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <eb1bdcb7dfc30b24495ee4c5533af0ed135cb5f1
  8. Affected versionversion=06a8fc78367d070720af960dcecec917d3ae5f3b <fd8ae346692a56b4437d626c5460c7104980f389
  9. Affected versionversion=4.8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=06a8fc78367d070720af960dcecec917d3ae5f3b <2a6a4e69f255b7aed17f93995691ab4f0d3c2203; version=06a8fc78367d070720af960dcecec917d3ae5f3b <44d29897eafd0e1196453d3003a4d5e0b968eeab; version=06a8fc78367d070720af960dcecec917d3ae5f3b <5f092a4271f6dccf88fe0d132475a17b69ef71df; version=06a8fc78367d070720af960dcecec917d3ae5f3b <5f970935d09934222fdef3d0e20c648ea7a963c1; version=06a8fc78367d070720af960dcecec917d3ae5f3b <6ca575374dd9a507cdd16dfa0e78c2e9e20bd05f; version=06a8fc78367d070720af960dcecec917d3ae5f3b <b110196fec44fe966952004bd426967c2a8fd358; version=06a8fc78367d070720af960dcecec917d3ae5f3b <eb1bdcb7dfc30b24495ee4c5533af0ed135cb5f1; version=06a8fc78367d070720af960dcecec917d3ae5f3b <fd8ae346692a56b4437d626c5460c7104980f389; version=4.8

Published CVSS scores

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 exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
T1068Exploitation for Privilege Escalation

Public exploit references

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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