Yüksek CVSS 7.5
CVE-2026-81665: CVE-2026-81665: yığın (heap) taşması
Açıklama (NVD)
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 protocol messages to the cluster could cause a heap buffer overflow with attacker-controlled data. This can crash the Corosync daemon, causing a denial of service to the entire cluster, and may potentially allow further exploitation given sufficient heap-corruption control.
Özet bilgiler
- CVSS v3.1
- 7.5
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,42 (yüzdelik 36)
- CWE
- CWE-122
- Yama
- Yok / bilinmiyor