Linux Kernel up to 6.3.1 i2c cdns_i2c_master_xfer privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 5.10.179/5.15.110/6.1.27/6.2.14/6.3.1. Affected by this issue is the function cdns_i2c_master_xfer of the component i2c. The manipulation leads to an unknown weakness. This vulnerability is uniquely identified as CVE-2023-54009. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.179/5.15.110/6.1.27/6.2.14/6.3.1 and classified as critical. This issue affects the function cdns_i2c_master_xfer of the component i2c. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: i2c: cadence: cdns_i2c_master_xfer(): Fix runtime PM leak on error path The cdns_i2c_master_xfer() function gets a runtime PM reference when the function is entered. This reference is released when the function is exited. There is currently one error path where the function exits directly, which leads to a leak of the runtime PM reference. Make sure that this error path also releases the runtime PM reference.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2023-54009 since 12/24/2025. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/30/2026).

The vulnerability scanner Nessus provides a plugin with the ID 280033 (Linux Distros Unpatched Vulnerability : CVE-2023-54009), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.180, 5.15.111, 6.1.28, 6.2.15 or 6.3.2 eliminates this vulnerability. Applying the patch fd7bf900c3215c77f6d779d1532faa22b79f2430/2d65599ad1e4f195bbb80752cd5cbc2f1a018dba/a712b5a95270e62209f5c2201c774f708f75234e/d0dc6553b5f2b1272c01b0eba5fe2fd89cc59f44/5b14d7c6ba0ba5d167f5ef588ca6dfe1af6dd0aa/ae1664f04f504a998737f5bb563f16b44357bcca is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (280033) and CERT Bund (WID-SEC-2025-2920). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • SUSE Linux
  • SUSE openSUSE
  • Open Source Linux Kernel

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privilege escalation
CWE: Unknown
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 280033
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-54009

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.180/5.15.111/6.1.28/6.2.15/6.3.2
Patch: fd7bf900c3215c77f6d779d1532faa22b79f2430/2d65599ad1e4f195bbb80752cd5cbc2f1a018dba/a712b5a95270e62209f5c2201c774f708f75234e/d0dc6553b5f2b1272c01b0eba5fe2fd89cc59f44/5b14d7c6ba0ba5d167f5ef588ca6dfe1af6dd0aa/ae1664f04f504a998737f5bb563f16b44357bcca

Timelineinfo

12/24/2025 Advisory disclosed
12/24/2025 +0 days CVE reserved
12/24/2025 +0 days VulDB entry created
01/30/2026 +37 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-54009 (🔒)
GCVE (CVE): GCVE-0-2023-54009
GCVE (VulDB): GCVE-100-338207
CERT Bund: WID-SEC-2025-2920 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 12/24/2025 15:28
Updated: 01/30/2026 07:35
Changes: 12/24/2025 15:28 (58), 12/25/2025 05:12 (7), 12/27/2025 10:03 (2), 01/30/2026 07:35 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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