CVE-2022-42896

HIGH

Linux Kernel < 4.9.335 - Use-After-Free in Bluetooth L2CAP Core

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2022-42896. PoCs published by Trinadh465, Satheesh575555.

AI-analyzed exploit summary The repository contains documentation files related to the Linux kernel, specifically for CVE-2022-42896. It includes ABI documentation, admin guides, and scripts for AoE (ATA over Ethernet) configuration, but no actual exploit code or proof-of-concept is present.

Description

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2cap_core.c's l2cap_connect and l2cap_le_connect_req functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim. We recommend upgrading past commit  https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url

Exploits (2)

nomisec WRITEUP
by Trinadh465 · poc
https://github.com/Trinadh465/linux-4.19.72_CVE-2022-42896

The repository contains documentation files related to the Linux kernel, specifically for CVE-2022-42896. It includes ABI documentation, admin guides, and scripts for AoE (ATA over Ethernet) configuration, but no actual exploit code or proof-of-concept is present.

Classification
Writeup 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: Linux Kernel 4.19.72
No auth needed
Prerequisites: Access to Linux kernel documentation
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WRITEUP
by Satheesh575555 · poc
https://github.com/Satheesh575555/linux-4.19.72_CVE-2022-42896

The repository contains documentation files related to Linux kernel ABI, admin guides, and hardware-specific notes. No exploit code or PoC is present in the provided files.

Classification
Writeup 90%
Attack Type
N/a
Complexity
N/a
Reliability
N/a
Target: N/A
No auth needed
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Scores

CVSS v3 8.0
EPSS 0.0201
EPSS Percentile 78.3%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (1)
linux/linux_kernel < 4.9.335
Published Nov 23, 2022
Tracked Since Feb 18, 2026