CVE-2026-71194

In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. When two zones with the same name exist across different pools, the lookup fails with a deterministic error, causing the handler to return REFUSED for all DNS...

PT-2026-71364

Name of the Vulnerable Software and Affected Versions OpenStack Designate versions prior to 22.0.2 Description The mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. If two zones with the same name exist across different pools, the lookup fails, leading th...

EUVD-2026-54225

Contiki-NG's DNS/mDNS resolver skipname in os/services/resolv/resolv.c walks DNS wire-format name labels with no packet-boundary check, and the caller in newdata invokes it in a loop iterating nquestions times from the attacker-controlled DNS header before validating the transaction ID. An attack...

CVE-2026-5856

Affected software/component: Contiki-NG DNS/mDNS resolver (os/services/resolv/resolv.c). Root cause: skip_name() walks DNS wire-format labels without a packet-boundary check; newdata() loops nquestions from attacker-controlled DNS header before validating the transaction ID, causing the function ...

EUVD-2026-52964

Buffer Overflow vulnerability exists in open62541 1.5.5 when the Local Discovery Server LDS is built with multicast discovery enabled through the MDNSD backend. An unauthenticated remote attacker can send a RegisterServer or RegisterServer2 request containing many unique discoveryUrls. This allow...

CVE-2026-67858

Buffer Overflow vulnerability exists in open62541 1.5.5 when the Local Discovery Server LDS is built with multicast discovery enabled through the MDNSD backend. An unauthenticated remote attacker can send a RegisterServer or RegisterServer2 request containing many unique discoveryUrls. This allow...

OESA-2026-2833 python-zeroconf security update

Pure Python Multicast DNS Service Discovery Library Bonjour/Avahi compatible Security Fixes: readcharacterstring and readstring in src/zeroconf/protocol/incoming.py sliced self.dataself.offset : self.offset + length and advanced self.offset by the declared length without checking it against...

CVE-2026-10657

Zephyr's DNS resolver detects mDNS .local queries in dnsresolvenameinternal subsys/net/lib/dns/resolve.c with memcmpstrrchrquery, '.', ".local", 7, which always reads a fixed 7 bytes from the suffix pointer. When the resolved hostname's final label is shorter than 7 bytes e.g. names ending in .or...

CVE-2026-10657

The CVE-2026-10657 vulnerability affects Zephyr's DNS resolver when MDNS (CONFIG_MDNS_RESOLVER) is enabled. The code uses memcmp(strrchr(query, '.'), ".local", 7) to detect mDNS queries, reading a fixed 7 bytes from the suffix pointer. If the final label is shorter than 7 bytes (e.g., .org, .com,...

SUSE-SU-2026:22338-1 Security update for avahi

This update for avahi fixes the following issues: - CVE-2026-34933: reachable assertion in transportflagsfromdomain can crash the avahi-daemon bsc1261546. - CVE-2026-24401: unsolicited mDNS responses containing a recursive CNAME record can crash the avahi-daemon bsc1257235...

EulerOS 2.0 SP11 : avahi (EulerOS-SA-2026-2197)

According to the versions of the avahi packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and below,...

EulerOS Virtualization 2.12.0 : avahi (EulerOS-SA-2026-2095)

According to the versions of the avahi package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Avahi is a system which facilitates service discovery on a local network via the mDNS/DNS-SD protocol suite. In versions 0.9rc2 and...

Linux Distros Unpatched Vulnerability : CVE-2026-5245

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handlemdnsrecord of the file mongoose.c of the component mDNS Record Handler...

JLSEC-2026-370 A vulnerability was found in Cesanta Mongoose up to 7.20

A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handlemdnsrecord of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A...

SUSE-SU-2026:1441-1 Security update for avahi

This update for avahi fixes the following issue: - CVE-2026-24401: avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record bsc1257235...

Security update for avahi

This update for avahi fixes the following issue: CVE-2026-24401: avahi-daemon can be crashed via a segmentation fault by sending an unsolicited mDNS response containing a recursive CNAME record bsc1257235. Patch Instructions: To install this SUSE update use the SUSE recommended installation metho...

EUVD-2026-18183

A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handlemdnsrecord of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A...

CVE-2026-5245

A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handlemdnsrecord of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A...

CVE-2026-5245 Cesanta Mongoose mDNS Record mongoose.c handle_mdns_record stack-based overflow

A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handlemdnsrecord of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A...

CVE-2026-5245

A vulnerability was found in Cesanta Mongoose up to 7.20. This impacts the function handlemdnsrecord of the file mongoose.c of the component mDNS Record Handler. Performing a manipulation of the argument buf results in stack-based buffer overflow. Remote exploitation of the attack is possible. A...