Linux Kernel privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$5k-$25k0.00

Summaryinfo

A vulnerability described as very critical has been identified in Linux Kernel. This affects an unknown function. Such manipulation leads to privileges management. This vulnerability is uniquely identified as CVE-2026-17523. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability, which was classified as very critical, has been found in Linux Kernel (unknown version). Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: can: bcm: switch timer to HRTIMER_MODE_SOFT and remove hrtimer_tasklet This patch switches the timer to HRTIMER_MODE_SOFT, which executed the timer callback in softirq context and removes the hrtimer_tasklet.

The advisory is available at access.redhat.com. This vulnerability is handled as CVE-2026-17523 since 07/27/2026. The exploitation is known to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 09/09/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 337336 (RHEL 8 : kernel (RHSA-2026:55764)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (337336) and EUVD (EUVD-2026-49133). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (redhat): 🔒

CVSSv2info

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

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 337336
Nessus Name: RHEL 8 : kernel (RHSA-2026:55764)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/27/2026 Advisory disclosed
07/27/2026 +0 days CVE reserved
07/27/2026 +0 days VulDB entry created
09/09/2026 +44 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: access.redhat.com
Status: Not defined

CVE: CVE-2026-17523 (🔒)
GCVE (CVE): GCVE-0-2026-17523
GCVE (VulDB): GCVE-100-383402
EUVD: 🔒

Entryinfo

Created: 07/27/2026 12:25
Updated: 09/09/2026 12:14
Changes: 07/27/2026 12:25 (51), 07/29/2026 13:38 (1), 08/18/2026 21:38 (2), 09/01/2026 13:02 (12), 09/09/2026 12:14 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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