CVE-2026-10637

CVE-2026-10637 describes a use-after-free in Zephyr’s IPv6 MLD path: after net_send_data(pkt) returns, the code reads net_pkt_iface(pkt) from a freed net_pkt, risking NULL or stale pointers and potential crash or memory corruption. The root cause is violating the network stack ownership contract;...

EUVD-2026-37113

In Zephyr's IPv4 IGMP implementation, igmpsend in subsys/net/ip/igmp.c read the network interface back out of the packet via netpktifacepkt after the packet had been handed to netsenddata. On the successful-send path the packet's last reference may already have been released by the L2 driver or b...

CVE-2026-10636 Use-after-free in Zephyr IPv4 IGMP send path (`igmp_send`)

In Zephyr's IPv4 IGMP implementation, igmpsend in subsys/net/ip/igmp.c read the network interface back out of the packet via netpktifacepkt after the packet had been handed to netsenddata. On the successful-send path the packet's last reference may already have been released by the L2 driver or b...

EUVD-2026-37009

Socket versions before 2.041 for Perl have an out-of-bounds heap read. In Socket.xs, packipmreqsource checks the length of its source argument before the argument is read, so the check tests the byte length carried over from the preceding multiaddr argument instead. Both addresses occupy a 4-byte...

PT-2026-49710

Name of the Vulnerable Software and Affected Versions Zephyr affected versions not specified Description A use-after-free issue exists in the mld send function within the IPv6 Multicast Listener Discovery MLD implementation. The function attempts to read the packet interface using net pkt ifacepk...

SUSE CVE-2026-50127

Weblate is a web based localization tool. From version 5.15 to before version 2026.6, Weblate's VCSRESTRICTPRIVATE did not properly account for some transitional IPv6 ranges, multicast addresses, or some semi-private IPv4 ranges, which allowed some addresses to bypass private range restrictions...

GHSA-9663-MQMP-P9MM python-zeroconf: Unbounded TC-deferred queue allows LAN-local memory exhaustion via spoofed-source flood

Impact AsyncListener.handlequeryordefer retained every truncated TC-bit incoming query in self.deferredaddr and armed a per-addr timer in self.timersaddr that flushed the reassembled query within 500 ms RFC 6762 §18.5. Neither the per-addr list nor the number of distinct addr keys was capped, and...

Allocation of Resources Without Limits or Throttling

Overview zeroconf is a Pure Python Multicast DNS Service Discovery Library Bonjour/Avahi compatible Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the AsyncListener.handlequeryordefer function. An attacker can exhaust system memory and...

PT-2026-48689

Name of the Vulnerable Software and Affected Versions Zeroconf versions prior to 0.149.12 Description An issue exists in the AsyncListener.handle query or defer function where the software retains every truncated TC-bit incoming query in self. deferredaddr and arms a per-address timer in self...

FreeBSD : FreeBSD -- Use-after-free bug in the IPV6_MSFILTER socket option handler (c5b7ac13-6473-11f1-958d-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the c5b7ac13-6473-11f1-958d-bc241121aa0a advisory. The kernel handler for IPV6MSFILTER dropped a serializing lock in order to copy the source-filter list...

PT-2026-48524

Name of the Vulnerable Software and Affected Versions Weblate versions 5.15 through 2026.5 Description Weblate is a web-based localization tool. The VCS RESTRICT PRIVATE setting fails to properly account for certain semi-private IPv4 ranges, multicast addresses, and transitional IPv6 ranges,...

EulerOS 2.0 SP13 : avahi (EulerOS-SA-2026-2278)

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. Prior to version 0.9-rc4, any...

Weblate 代码问题漏洞

Weblate is an open-source, copyleft, web-based free software system for continuous localization. Versions of Weblate prior to 2026.6 had code-related vulnerabilities. These vulnerabilities stemmed from the improper handling of some transition IPv6 ranges, multicast addresses, and partially...

EulerOS 2.0 SP13 : avahi (EulerOS-SA-2026-2321)

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. Prior to version 0.9-rc4, any...

PT-2026-53062

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the kernel handler for IPV6 MSFILTER. The handler drops a serializing lock to copy the source-filter list from userspace and subsequently reacquires it...

FreeBSD Security Advisory - FreeBSD-SA-26:29.ip6_multicast

FreeBSD Security Advisory - The kernel handler for IPV6MSFILTER dropped a serializing lock in order to copy the source-filter list from userspace, then reacquired the lock. During this window another thread could free the multicast filter structure, leaving the handler with a stale pointer to fre...

EulerOS 2.0 SP11 : avahi (EulerOS-SA-2026-2235)

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,...

FreeBSD -- Use-after-free bug in the IPV6_MSFILTER socket option handler

Problem Description: The kernel handler for IPV6MSFILTER dropped a serializing lock in order to copy the source-filter list from userspace, then reacquired the lock. During this window another thread could free the multicast filter structure, leaving the handler with a stale pointer to freed...

FreeBSD-SA-26:29.ip6_multicast

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:29.ip6multicast Security Advisory The FreeBSD Project Topic: Use-after-free bug in the IPV6MSFILTER socket option handler Category: core Module: ip6multicast...

EulerOS Virtualization 2.10.0 : avahi (EulerOS-SA-2026-2042)

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 0.9-rc2 and earlier, ...