Linux Kernel up to 6.15-rc6 arm64 privilege escalation

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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 6.1.138/6.6.90/6.12.28/6.14.6/6.15-rc6. This affects an unknown part of the component arm64. This manipulation causes an unknown weakness. This vulnerability is handled as CVE-2025-37963. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.138/6.6.90/6.12.28/6.14.6/6.15-rc6. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component arm64. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users Support for eBPF programs loaded by unprivileged users is typically disabled. This means only cBPF programs need to be mitigated for BHB. In addition, only mitigate cBPF programs that were loaded by an unprivileged user. Privileged users can also load the same program via eBPF, making the mitigation pointless.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-37963 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 237223 (Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.139, 6.6.91, 6.12.29, 6.14.7 or 6.15-rc7 eliminates this vulnerability. Applying the patch 6e52d043f7dbf1839a24a3fab2b12b0d3839de7a/80251f62028f1ab2e09be5ca3123f84e8b00389a/e5f5100f1c64ac6c72671b2cf6b46542fce93706/477481c4348268136227348984b6699d6370b685/f300769ead032513a68e4a02e806393402e626f8 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 (237223), EUVD (EUVD-2025-15886) and CERT Bund (WID-SEC-2025-1114). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • Dell Avamar
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway

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: 237223
Nessus Name: Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 6.1.139/6.6.91/6.12.29/6.14.7/6.15-rc7
Patch: 6e52d043f7dbf1839a24a3fab2b12b0d3839de7a/80251f62028f1ab2e09be5ca3123f84e8b00389a/e5f5100f1c64ac6c72671b2cf6b46542fce93706/477481c4348268136227348984b6699d6370b685/f300769ead032513a68e4a02e806393402e626f8

Timelineinfo

04/16/2025 🔍
05/20/2025 +34 days 🔍
05/20/2025 +0 days 🔍
12/20/2025 +214 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-37963 (🔍)
GCVE (CVE): GCVE-0-2025-37963
GCVE (VulDB): GCVE-100-309751
EUVD: 🔍
CERT Bund: WID-SEC-2025-1114 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 05/20/2025 18:28
Updated: 12/20/2025 23:00
Changes: 05/20/2025 18:28 (56), 05/25/2025 03:55 (2), 08/10/2025 01:26 (7), 09/27/2025 16:29 (1), 12/14/2025 18:04 (1), 12/16/2025 22:26 (11), 12/20/2025 23:00 (1)
Complete: 🔍
Cache ID: 216::103

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