CVE-2022-50359

Local system crash via unchecked buffer failure

Published Sep 17, 2025 · Updated Sep 17, 2025

NULL pointer dereference in the Linux kernel cx88 media driver allows local users to crash the system while starting video capture. buffer_prepare() ignores a failed cx88_risc_buffer() call, leaving an empty buffer that buffer_queue() later dereferences. Exploitation requires local access to a cx88 video device and a vulnerable driver; the documented consequence is a kernel crash.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the Linux kernel cx88 media driver allows local users to crash the system while starting video capture. buffer_prepare() ignores a failed cx88_risc_buffer() call, leaving an empty buffer that buffer_queue() later dereferences. Exploitation requires local access to a cx88 video device and a vulnerable driver; the documented consequence is a kernel crash.

The record

CVE
CVE-2022-50359
Published
Sep 17, 2025
Updated
Sep 17, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 17, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <10c99d1c46ea9cd940029e17bab11d021f315c21
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2b064d91440b33fba5b452f2d1b31f13ae911d71
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4befc7ffa18ef9a4b70d854465313a345a06862f
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <644d5a87ab1863eb606526ea743021752a17e9cb
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6f21976095c1e92454ab030976f95f40d652351b
  6. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <704838040f3bdb4aa07ff4f26505a666a3defcfe
  7. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9181af2dbf06e7f432e5dbe88d10b22343e851b9
  8. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c2257c8a501537afab276c306cb717b7260276e1
  9. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <10c99d1c46ea9cd940029e17bab11d021f315c21; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2b064d91440b33fba5b452f2d1b31f13ae911d71; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4befc7ffa18ef9a4b70d854465313a345a06862f; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <644d5a87ab1863eb606526ea743021752a17e9cb; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6f21976095c1e92454ab030976f95f40d652351b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <704838040f3bdb4aa07ff4f26505a666a3defcfe; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <9181af2dbf06e7f432e5dbe88d10b22343e851b9; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c2257c8a501537afab276c306cb717b7260276e1; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c76d04d2079a4b7369ce9a0e859c0f3f2250bcc1

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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-476NULL Pointer Dereference
T1499Endpoint Denial of Service

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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