CVE-2026-23021

MEDIUM
2026-01-31 416baaa9-dc9f-4396-8d5f-8c081fb06d67
5.5
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Patch Released
Mar 16, 2026 - 15:00 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 22:00 vuln.today
CVE Published
Jan 31, 2026 - 12:16 nvd
MEDIUM 5.5

Tags

Linux Information Disclosure Linux Kernel Redhat Suse

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: pegasus: fix memory leak in update_eth_regs_async() When asynchronously writing to the device registers and if usb_submit_urb() fail, the code fail to release allocated to this point resources.

Analysis

The pegasus USB driver in Linux kernel fails to properly release memory when asynchronous device register writes encounter USB submission failures, leading to memory exhaustion. A local attacker with user-level access can trigger this leak by causing USB operations to fail, potentially degrading system performance or causing denial of service. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Vendor patch is available.

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Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +28
POC: 0

Vendor Status

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CVE-2026-23021 vulnerability details – vuln.today
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