Vulnerability in Linux
CVE-2026-31662
In the Linux kernel, the following vulnerability has been resolved: tipc: fix bc_ackers underflow on duplicate GRP_ACK_MSG The GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrements bc_ackers on every inbound group ACK, even…
EPSS: 0.001 (22.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Linux — versions 2f487712b89376fce267223bbb0db93d393d4b09, 4.15, 0
References
- git.kernel.org/stable/c/a7db57ccca21f5801609065473c89a38229ecb92
- git.kernel.org/stable/c/36ec4fdd6250dcd5e73eb09ea92ed92e9cc28412
- git.kernel.org/stable/c/575faea557f1a184a5f09661bd47ebd3ef3769f8
- git.kernel.org/stable/c/3bcf7aca63f0bcd679ae28e9b99823c608e59ce3
- git.kernel.org/stable/c/a2ea1ef0167d7a84730638d05c20ccdc421b14b6
- git.kernel.org/stable/c/1b6f13f626665cac67ba5a012765427680518711
- git.kernel.org/stable/c/e0bb732eaf77f9ac2f2638bdac9e39b81e0a9682
- git.kernel.org/stable/c/48a5fe38772b6f039522469ee6131a67838221a8
Frequently asked questions
- What is CVE-2026-31662?
- CVE-2026-31662 is a high-severity vulnerability in Linux. CVSS score: 7.5/10. Published 2026-04-24.
- How severe is CVE-2026-31662?
- High severity. CVSS v3 base score is 7.5 out of 10.