CVE-2026-23021Missing Release of Memory after Effective Lifetime in Linux

Severity
5.5MEDIUMNVD
OSV7.8
EPSS
0.0%
top 95.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJan 31
Latest updateApr 13

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages7 packages

Linuxlinux/linux_kernel3.10.05.10.248+5
NVDlinux/linux_kernel3.10.15.10.248+7
Debianlinux/linux_kernel< 5.10.249-1+3
Ubuntulinux/linux_kernel< 5.15.0-173.183
CVEListV5linux/linux323b34963d113efb566635f43858f40cce01d5f95397ea6d21c35a17707e201a60761bdee00bcc4e+7

Patches

🔴Vulnerability Details

10
OSV
linux-raspi vulnerabilities2026-04-01
OSV
linux-intel-iot-realtime vulnerabilities2026-03-23
OSV
linux-nvidia-tegra-igx vulnerabilities2026-03-23
OSV
linux-realtime vulnerabilities2026-03-17
OSV
linux-aws-5.15, linux-gcp-5.15, linux-gke, linux-hwe-5.15, linux-intel-iotg-5.15, linux-lowlatency-hwe-5.15, linux-oracle-5.15 vulnerabilities2026-03-17

📋Vendor Advisories

11
Ubuntu
Linux kernel (Azure) vulnerabilities2026-04-13
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities2026-04-09
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities2026-04-01
Ubuntu
Linux kernel (Intel IoTG Real-time) vulnerabilities2026-03-23
Ubuntu
Linux kernel (NVIDIA Tegra IGX) vulnerabilities2026-03-23

🕵️Threat Intelligence

1
Wiz
CVE-2026-23021 Impact, Exploitability, and Mitigation Steps | Wiz
CVE-2026-23021 — Linux vulnerability | cvebase