PT-2025-44725 · Realtek+2 · Rtl8192Eu+3

Published 2025-01-01 · Updated 2026-03-26 · CVE-2025-71234

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified) NGINX versions 1.26.x

Description The Linux kernel driver for Realtek 8xxxU wireless adapters contains a flaw where insufficient space is allocated for driver private station data, leading to a slab-out-of-bounds write when accessing members of the rtl8xxxu sta info structure through sta->drv priv. This issue was identified through KASAN reports on RISC-V systems with a RTL8192EU adapter. The fix involves setting hw->sta data size to the size of the rtl8xxxu sta info structure during probe.

NGINX versions 1.26.x are affected by a critical remote code execution issue due to an unauthorized path traversal that can lead to root shell access.

Recommendations Linux kernel: Ensure hw->sta data size is set to sizeof(struct rtl8xxxu sta info) during probe. NGINX versions 1.26.x: Apply the patch available at the provided link.

Exploit

Fix

RCE

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2025-71234

ECHO-6279-D794-F734

OPENSUSE-SU-2026:10387-1

OPENSUSE-SU-2026:20416-1

SUSE-SU-2026:0962-1

SUSE-SU-2026:1081-1

SUSE-SU-2026:20667-1

SUSE-SU-2026:20720-1

SUSE-SU-2026:20838-1

SUSE-SU-2026:20845-1

SUSE-SU-2026:20876-1

SUSE-SU-2026:20931-1

SUSE-SU-2026:21284-1

Affected Products

Linux Kernel

Nginx

Rtl8192Eu

Realtek 8Xxxu

References · 1591

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71234.json · Exploit
• https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8 · Patch
• https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5 · Patch
• https://security-tracker.debian.org/tracker/CVE-2025-71234 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-71234 · Security Note
• https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf · Patch
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-11-CVE-2025-71234 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20931-1 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20416-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-71234 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2025-71234 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-71234 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:20667-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2026-50160.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:0962-1 · Vendor Advisory