CVE-2026-41285-OpenBSD-v6daemons-go-brrr

CVE-2026-41285: Un Paquete Mata IPv6 en OpenBSD Un paquete ICMPv6 manipulado desde la red local deja permanentemente colgados slaacd y/o rad. La autoconfiguración de direcciones IPv6 SLAAC muere hasta que alguien reinicie manualmente el demonio. Sin autenticación, sin privilegios, 18 bytes de car...

The vulnerability of demons slaacd and rad in the OpenBSD operating system allows a hacker to induce a service failure.

The vulnerability of demons slaacd and rad in the OpenBSD operating system is related to a circularization issue caused by integer overflow. Exploiting this vulnerability allows an attacker to cause service failures remotely...

CVE-2026-41285

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery ND option over a local network with length zero, because of an "ndoptlen 8 - 2" expression with no preceding check for whether ndoptlen is zero...

EUVD-2026-23996

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery ND option over a local network with length zero, because of an "ndoptlen 8 - 2" expression with no preceding check for whether ndoptlen is zero...

OpenBSD 安全漏洞

OpenBSD is a cross-platform, BSD-based UNIX-like operating system developed by the OpenBSD organization in Canada. Versions of OpenBSD 7.8 and earlier contained a security vulnerability caused by the slaacd and rad daemon entering an infinite loop when receiving a specially crafted ICMPv6 neighbo...

PT-2026-33860

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery ND option over a local network with length zero, because of an "nd opt len 8 - 2" expression with no preceding check for whether nd opt len is zero...

CVE-2026-41285

CVE-2026-41285 affects OpenBSD up to version 7.8, specifically the slaacd and rad daemons. The issue is a missing validation for ICMPv6 Neighbor Discovery ND options: when a crafted ND option with length zero is received, an expression nd_opt_len * 8 - 2 can execute without a preceding check, cau...

CVE-2026-41285

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery ND option over a local network with length zero, because of an "ndoptlen 8 - 2" expression with no preceding check for whether ndoptlen is zero...

CVE-2026-41285

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery ND option over a local network with length zero, because of an "ndoptlen 8 - 2" expression with no preceding check for whether ndoptlen is zero...

CVE-2026-41285

In OpenBSD through 7.8, the slaacd and rad daemons have an infinite loop when they receive a crafted ICMPv6 Neighbor Discovery ND option over a local network with length zero, because of an "ndoptlen 8 - 2" expression with no preceding check for whether ndoptlen is zero...

CVE-2022-27882

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation...

OpenBSD Buffer Overflow Vulnerability

OpenBSD is a cross-platform, BSD-based UNIX-like operating system from the Canadian OpenBSD Openbsd project team. OpenBSD suffers from a buffer overflow vulnerability that can be exploited by an attacker to cause slaacd to crash via specially crafted IPv6 routes...

Vulnerability fixed in OpenBSD slaacd

A vulnerability has been fixed in OpenBSD slaacd. This is a service for IPv6 stateless address autoconfiguration SLAAC. A malicious party could potentially exploit the vulnerability to cause a Denial-of-Service. To do so, the malicious party needs to send a specially prepared router advertisement...

CVE-2022-27882

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation...

CVE-2022-27882

slaacd in OpenBSD 6.9 and 7.0 before 2022-03-22 has an integer signedness error and resultant heap-based buffer overflow triggerable by a crafted IPv6 router advertisement. NOTE: privilege separation and pledge can prevent exploitation...

CVE-2022-27881

engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation...

CVE-2022-27881

engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation...

CVE-2022-27881

engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation...

Buffer overflow

engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation...

CVE-2022-27881

The CVE affects OpenBSD slaacd (OpenBSD 6.9 and 7.0) in engine.c, where a buffer overflow is triggered by an IPv6 router advertisement with more than seven nameservers. The issue can cause slaacd to crash; however, privilege separation and pledge are noted as potential preventive measures. Patche...