EIP-2026-120692

PRE-CVE

Linux Kernel 6.8 - Local Privilege Escalation

Title source: legacy
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for EIP-2026-120692. PoCs published by Long Fong Chan.

AI-analyzed exploit summary This Rust exploit leverages a Linux kernel vulnerability (CVE-2026-31431) in AF_ALG (algif_aead) to perform arbitrary file overwrite in page cache via splice() and AEAD crypto interface, leading to local privilege escalation by overwriting /usr/bin/su with a custom shellcode payload.

Description

Linux Kernel 6.8 - Local Privilege Escalation

Exploits (1)

exploitdb WORKING POC
by Long Fong Chan · pythonlocallinux
https://www.exploit-db.com/exploits/52573

This Rust exploit leverages a Linux kernel vulnerability (CVE-2026-31431) in AF_ALG (algif_aead) to perform arbitrary file overwrite in page cache via splice() and AEAD crypto interface, leading to local privilege escalation by overwriting /usr/bin/su with a custom shellcode payload.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Complex
Reliability
Reliable
Target: Linux Kernel 5.4 - 6.8 (unpatched)
No auth needed
Prerequisites: Unprivileged local user access · algif_aead module loaded
devstral-2 · analyzed May 27, 2026 Full analysis →

Details

Status pre_cve
Tracked Since May 27, 2026