CVE-2022-45885

Kernel memory corruption via DVB disconnect race

Published Nov 25, 2022 · Updated Apr 29, 2025

Use-after-free in the Linux kernel DVB frontend through 6.0.9 allows local users to corrupt memory by disconnecting a DVB device. A disconnect can race DVB frontend teardown, causing the driver to access frontend state after its backing allocation has been freed. Reaching the flaw requires low-privilege local access and a disconnectable DVB device; resulting memory corruption can crash the kernel or compromise the host.

CVSS severity7.0
High
EPSS probability0.31%
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 DVB frontend through 6.0.9 allows local users to corrupt memory by disconnecting a DVB device. A disconnect can race DVB frontend teardown, causing the driver to access frontend state after its backing allocation has been freed. Reaching the flaw requires low-privilege local access and a disconnectable DVB device; resulting memory corruption can crash the kernel or compromise the host.

The record

CVE
CVE-2022-45885
Published
Nov 25, 2022
Updated
Apr 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-362, CWE-416
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2025Record 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

7.0NIST NVDCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0CISA-ADPCVSS: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-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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