CVE-2023-53336

Local kernel crash via uninitialized device pointer

Published Sep 17, 2025 · Updated Sep 17, 2025

NULL pointer dereference in Linux kernel 5.16 through 6.4.15 and 6.5 through 6.5.2 allows local users to crash it via unknown SSDB or PLD values. During sensor initialization, ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() pass sensor->adev to dev_warn() before that pointer is assigned. Reachability requires the affected Intel IPU bridge parsing path and an unknown firmware value; the documented consequence is an availability-only kernel crash.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

NULL pointer dereference in Linux kernel 5.16 through 6.4.15 and 6.5 through 6.5.2 allows local users to crash it via unknown SSDB or PLD values. During sensor initialization, ipu_bridge_parse_rotation() and ipu_bridge_parse_orientation() pass sensor->adev to dev_warn() before that pointer is assigned. Reachability requires the affected Intel IPU bridge parsing path and an unknown firmware value; the documented consequence is an availability-only kernel crash.

The record

CVE
CVE-2023-53336
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=485aa3df0dffa62d347ea4e0116f549338accc59 <284be5693163343e1cf17c03917eecd1d6681bcf
  2. Affected versionversion=485aa3df0dffa62d347ea4e0116f549338accc59 <3de35e29cfddfe6bff762b15bcfe8d80bebac6cb
  3. Affected versionversion=485aa3df0dffa62d347ea4e0116f549338accc59 <e08b091e33ecf6e4cb2c0c5820a69abe7673280b
  4. Affected versionversion=5.16

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=485aa3df0dffa62d347ea4e0116f549338accc59 <284be5693163343e1cf17c03917eecd1d6681bcf; version=485aa3df0dffa62d347ea4e0116f549338accc59 <3de35e29cfddfe6bff762b15bcfe8d80bebac6cb; version=485aa3df0dffa62d347ea4e0116f549338accc59 <e08b091e33ecf6e4cb2c0c5820a69abe7673280b; version=5.16

Published CVSS scores

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

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-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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo