Linux Distros Unpatched Vulnerability : CVE-2026-3849

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a...

CVE-2026-30871

A flaw was found in the OpenWrt mdns daemon. A remote attacker can exploit a Stack-based Buffer Overflow vulnerability in the parsequestion function by sending specially crafted DNS Domain Name System packets. These packets, specifically PTR Pointer Record queries for reverse DNS domains, can cau...

CVE-2026-30872

A flaw was found in OpenWrt's mdns daemon. A remote attacker can exploit a stack-based buffer overflow vulnerability by sending a specially crafted DNS query. This occurs when processing IPv6 reverse DNS queries, where the system fails to validate the length of incoming data. Successful...

CVE-2026-30872

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

CVE-2026-30872 OpenWrt Project has a Stack-based Buffer Overflow vulnerability via IPv6 reverse DNS lookup

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

EUVD-2026-13249

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

CVE-2026-30872 OpenWrt Project has a Stack-based Buffer Overflow vulnerability via IPv6 reverse DNS lookup

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

CVE-2026-30872 OpenWrt Project has a Stack-based Buffer Overflow vulnerability via IPv6 reverse DNS lookup

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

CVE-2026-30872

OpenWrt OpenWrt mdns vulnerability CVE-2026-30872 affects versions prior to 24.10.6 and 25.12.1. The issue lies in the mdns daemon’s match_ipv6_addresses function, where a domain name copied into a 256-byte stack buffer via strcpy is followed by extracting a reverse IPv6 PTR query into a 46-byte ...

CVE-2026-30872

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the matchipv6addresses function, triggered when processing PTR queries for IPv6 reverse DNS domains .ip6.arpa receiv...

CVE-2026-30871

OpenWrt mdns daemon vulnerability (CVE-2026-30871) affects versions prior to 24.10.6 and 25.12.1. A stack-based buffer overflow in parse_question is triggered by PTR queries (reverse DNS: .in-addr.arpa and .ip6.arpa). DNS packets received on UDP port 5353 are expanded by dn_expand into an 8096-by...

EUVD-2026-13247

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the parsequestion function. The issue is triggered by PTR queries for reverse DNS domains .in-addr.arpa and .ip6.arp...

CVE-2026-30871

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the parsequestion function. The issue is triggered by PTR queries for reverse DNS domains .in-addr.arpa and .ip6.arp...

CVE-2026-30871 OpenWrt Project has Stack-based Buffer Overflow in DNS PTR Query

OpenWrt Project is a Linux operating system targeting embedded devices. In versions prior to 24.10.6 and 25.12.1, the mdns daemon has a Stack-based Buffer Overflow vulnerability in the parsequestion function. The issue is triggered by PTR queries for reverse DNS domains .in-addr.arpa and .ip6.arp...

GHSA-GRR9-747V-XVCP Scriban has an Infinite Recursion during Object Rendering Leads to Stack Overflow and Process Crash (Denial of Service)

When Scriban renders an object that contains a circular reference, it traverses the object's members infinitely. Because the ObjectRecursionLimit property defaults to unlimited, this behavior exhausts the thread's stack space, triggering an uncatchable StackOverflowException that immediately...

Scriban has an Infinite Recursion during Object Rendering Leads to Stack Overflow and Process Crash (Denial of Service)

When Scriban renders an object that contains a circular reference, it traverses the object's members infinitely. Because the ObjectRecursionLimit property defaults to unlimited, this behavior exhausts the thread's stack space, triggering an uncatchable StackOverflowException that immediately...

GHSA-WGH7-7M3C-FX25 Scriban has Uncontrolled Recursion in Parser Leads to Stack Overflow and Process Crash (Denial of Service)

Scriban is vulnerable to an uncontrolled process crash resulting in a Denial of Service. Because the recursive-descent parser does not enforce a default limit on expression depth, an attacker who controls template input can craft a heavily nested template that triggers a StackOverflowException. I...

Scriban has Uncontrolled Recursion in Parser Leads to Stack Overflow and Process Crash (Denial of Service)

Scriban is vulnerable to an uncontrolled process crash resulting in a Denial of Service. Because the recursive-descent parser does not enforce a default limit on expression depth, an attacker who controls template input can craft a heavily nested template that triggers a StackOverflowException. I...

EUVD-2026-13231

Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client...

DEBIAN-CVE-2026-3849

Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client...