CVE-2026-41429 Improper validation of NBNS name_len in arduino-esp32 NetBIOS leads to memory corruption

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, there is a remotely reachable memory corruption issue in the NBNS packet handling path. When NetBIOS is enabled by calling NBNS.begin..., the device listens on UDP...

EUVD-2026-25619

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, there is a remotely reachable memory corruption issue in the NBNS packet handling path. When NetBIOS is enabled by calling NBNS.begin..., the device listens on UDP...

CVE-2026-41429

arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, there is a remotely reachable memory corruption issue in the NBNS packet handling path. When NetBIOS is enabled by calling NBNS.begin..., the device listens on UDP...

PT-2026-35072

Name of the Vulnerable Software and Affected Versions arduino-esp32 versions prior to 3.3.8 Description A remotely reachable memory corruption issue exists in the NBNS packet handling path. When NetBIOS is enabled via the NBNS.begin function, the device listens on UDP port 137 and processes...

Arduino-Esp32 security vulnerabilities

Arduino-ESP32 is an open-source project by Espressif, designed for use with the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6, and ESP32-H2 boards. Versions of Arduino-ESP32 prior to 3.3.8 contained a security vulnerability. This vulnerability stemmed from a remote exploitable memory corruption...

CLSA-2026-1773667921 Fix CVE(s): CVE-2025-10230

SECURITY UPDATE: unauthenticated command injection via WINS hook in source4 NBT server. The "wins hook" parameter passed unsanitized NetBIOS names to a shell command, allowing arbitrary command execution by remote clients. - debian/patches/CVE-2025-10230.patch - CVE-2025-10230...

CLSA-2026-1773073974 Fix CVE(s): CVE-2025-10230

SECURITY UPDATE: command injection via improper NetBIOS name validation in shell hook handling CVE - debian/patches/CVE-2025-10230-1.patch: Validate NetBIOS names before passing them to hook shell command, rejecting characters outside alphanumeric, dot, underscore, or hyphen. Prevent command...

CVE-1999-0520

A system-critical NETBIOS/SMB share has inappropriate access control...

CVE-1999-0810

Denial of service in Samba NETBIOS name service daemon nmbd...

CVE-1999-0153

Windows 95/NT out of band OOB data denial of service through NETBIOS port, aka WinNuke...

CVE-1999-0288

The WINS server in Microsoft Windows NT 4.0 before SP4 allows remote attackers to cause a denial of service process termination via invalid UDP frames to port 137 NETBIOS Name Service, as demonstrated via a flood of random packets...

CVE-1999-0518

A NETBIOS/SMB share password is guessable...

CVE-1999-0499

NETBIOS share information may be published through SNMP registry keys in NT...

curl: Heap Buffer Over-Read via Malicious SMB Server READ_ANDX Response

================================================================================ DESCRIPTION: ================================================================================ Summary: I discovered a heap buffer over-read vulnerability in libcurl's SMB protocol implementation. A malicious SMB serv...

curl: Heap Buffer Over-Read via Malicious SMB Server READ_ANDX Response

================================================================================ DESCRIPTION: ================================================================================ Summary: I discovered a heap buffer over-read vulnerability in libcurl's SMB protocol implementation. A malicious SMB serv...

October 14, 2025—KB5066782 (OS Build 20348.4294)

October 14, 2025—KB5066782 OS Build 20348.4294 Applies To Windows Server 2022 Windows Secure Boot certificate expiration Secure Boot certificates used by most Windows devices have started expiring in June 2026. This might affect the ability of certain personal and business devices to boot securel...

Exploit for CVE-2025-10230

CVE-2025-10230 CVE-2025-102...

CVE-2025-10230

A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS registration packets are inserted into a shell command and executed by the Samba Active...

AZL-69830 CVE-2025-10230 affecting package samba 4.18.3-2

A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS registration packets are inserted into a shell command and executed by the Samba Active...

CVE-2025-10230

A flaw was found in Samba, in the front-end WINS hook handling: NetBIOS names from registration packets are passed to a shell without proper validation or escaping. Unsanitized NetBIOS name data from WINS registration packets are inserted into a shell command and executed by the Samba Active...