Linux Kernel up to 6.15.9/6.16.0 team privilege escalation

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel up to 6.15.9/6.16.0. This impacts an unknown function of the component team. This manipulation causes an unknown weakness. This vulnerability is registered as CVE-2025-39733. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.15.9/6.16.0. It has been declared as critical. Affected by this vulnerability is some unknown processing of the component team. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: team: replace team lock with rtnl lock syszbot reports various ordering issues for lower instance locks and team lock. Switch to using rtnl lock for protecting team device, similar to bonding. Based on the patch by Tetsuo Handa.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-39733 since 04/16/2025. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 264382 (Linux Distros Unpatched Vulnerability : CVE-2025-39733), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.15.10, 6.16.1 or 6.17-rc1 eliminates this vulnerability. Applying the patch 556a4337ba3e9a70e1e3a428e8465c3ea3c4aa41/53edc761c9911f597b6d701e846f6e84f15eaa6d/bfb4fb77f9a8ce33ce357224569eae5564eec573 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 (264382) and CERT Bund (WID-SEC-2025-1988). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Debian Linux
  • Google Cloud Platform
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • NetApp FAS
  • NetApp AFF
  • NetApp ActiveIQ Unified Manager
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Microsoft Azure
  • Dell Secure Connect Gateway
  • IBM QRadar SIEM
  • IBM Security Verify Access
  • Dell NetWorker

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

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 264382
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-39733

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.15.10/6.16.1/6.17-rc1
Patch: 556a4337ba3e9a70e1e3a428e8465c3ea3c4aa41/53edc761c9911f597b6d701e846f6e84f15eaa6d/bfb4fb77f9a8ce33ce357224569eae5564eec573

Timelineinfo

04/16/2025 CVE reserved
09/07/2025 +144 days Advisory disclosed
09/07/2025 +0 days VulDB entry created
02/09/2026 +155 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39733 (🔒)
GCVE (CVE): GCVE-0-2025-39733
GCVE (VulDB): GCVE-100-323035
CERT Bund: WID-SEC-2025-1988 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 09/07/2025 18:32
Updated: 02/09/2026 21:00
Changes: 09/07/2025 18:32 (57), 09/11/2025 09:01 (2), 11/26/2025 23:24 (10), 11/28/2025 03:08 (7), 01/03/2026 16:15 (1), 01/25/2026 13:46 (1), 02/09/2026 21:00 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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