Linux Kernel up to 6.4.4 net of_node_put privilege escalation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 6.4.4. This affects the function of_node_put of the component net. This manipulation causes an unknown weakness. This vulnerability is handled as CVE-2023-53170. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.4.4 and classified as critical. Affected by this vulnerability is the function of_node_put of the component net. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: net: dsa: Removed unneeded of_node_put in felix_parse_ports_node Remove unnecessary of_node_put from the continue path to prevent child node from being released twice, which could avoid resource leak or other unexpected issues.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2023-53170 since 09/15/2025. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/10/2026).

The vulnerability scanner Nessus provides a plugin with the ID 265247 (Linux Distros Unpatched Vulnerability : CVE-2023-53170), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.4.5 eliminates this vulnerability. Applying the patch 7ead10b44b79ce8bfcd51e749d54e009de5f511a/04499f28b40bfc24f20b0e2331008bb90a54a6cf 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 (265247) and CERT Bund (WID-SEC-2025-2053). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway
  • F5 F5OS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265247
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2023-53170

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.4.5
Patch: 7ead10b44b79ce8bfcd51e749d54e009de5f511a/04499f28b40bfc24f20b0e2331008bb90a54a6cf

Timelineinfo

09/15/2025 Advisory disclosed
09/15/2025 +0 days CVE reserved
09/15/2025 +0 days VulDB entry created
01/10/2026 +117 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2023-53170 (🔒)
GCVE (CVE): GCVE-0-2023-53170
GCVE (VulDB): GCVE-100-323941
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 16:41
Updated: 01/10/2026 19:43
Changes: 09/15/2025 16:41 (58), 09/18/2025 22:16 (2), 12/03/2025 22:57 (10), 12/28/2025 22:33 (7), 01/10/2026 19:43 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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