CVE-2026-81665 Corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

EUVD-2026-70978

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

CVE-2026-81665 Corosync: corosync: heap-based buffer overflow in totempg assembly buffer during fragmented message reassembly

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

CVE-2026-81665

Corosync's Totem Process Group (totempg) suffers from a heap-based buffer overflow in its fragmented multicast message reassembly path. In release builds, the reassembly buffer lacks a runtime bounds check, allowing a network-adjacent attacker to send crafted multicast protocol messages that over...

CVE-2026-81665

A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer used to reassemble fragments lacks a runtime bounds check in release builds. A network-adjacent attacker able to send crafted multicast...

Linux Distros Unpatched Vulnerability : CVE-2026-81665

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A heap-based buffer overflow was found in Corosync's Totem Process Group totempg message reassembly. When processing fragmented multicast messages, the buffer...

PT-2026-85442

Name of the Vulnerable Software and Affected Versions Corosync affected versions not specified Description A heap-based buffer overflow exists in the Totem Process Group totempg message reassembly of Corosync. The issue occurs during the processing of fragmented multicast messages because the...