CVE-2026-98432
A use-after-free security vulnerability in the Linux kernel TCP protocol stack, caused by a reference-counting race in the state machine, affecting servers, cloud hosts, and networked devices.
Timeline (last 90 days)
CVE-2026-98432是一个Linux内核0day远程代码执行漏洞，公开将近三周后Ubuntu LTS内核仍未获得官方补丁。
目前CVE-2026-98432的补丁状态仍是未决事项。
The security research community has disclosed a use-after-free (UAF) vulnerability affecting the Linux IPv4 TCP protocol stack, tracked as CVE-2026-98432.
CVE-2026-98432 has a CVSS score of 9.8 and is rated "critical."
The vulnerability is located in the IPv4 TCP processing path, and an attacker may trigger it by crafting specific TCP packet sequences or connection state transitions.
CVE-2026-98432 is a use-after-free vulnerability in the Linux kernel TCP protocol stack.
Patch verification directions discussed in the Hacker News comment section include reproducing the original trigger conditions to confirm no anomalous reference counts after the patch, constructing variant inputs to test adjacent code paths, and observing object lifetime stability under stress scenarios.
The vulnerability was identified during a code review of the TCP protocol stack's state-transition logic, rather than discovered by chance through routine fuzz testing.
The discussion around CVE-2026-98432 on Hacker News has 14 points and 10 comments.
Public details about CVE-2026-98432 remain limited at present, and the conditions for multi-source cross-validation are not yet sufficient.
All Facts (10)
CVE-2026-98432是一个Linux内核0day远程代码执行漏洞，公开将近三周后Ubuntu LTS内核仍未获得官方补丁。
50%Unverified目前CVE-2026-98432的补丁状态仍是未决事项。
50%UnverifiedThe security research community has disclosed a use-after-free (UAF) vulnerability affecting the Linux IPv4 TCP protocol stack, tracked as CVE-2026-98432.
50%UnverifiedCVE-2026-98432 has a CVSS score of 9.8 and is rated "critical."
50%UnverifiedThe vulnerability is located in the IPv4 TCP processing path, and an attacker may trigger it by crafting specific TCP packet sequences or connection state transitions.
50%UnverifiedCVE-2026-98432 is a use-after-free vulnerability in the Linux kernel TCP protocol stack.
50%UnverifiedPatch verification directions discussed in the Hacker News comment section include reproducing the original trigger conditions to confirm no anomalous reference counts after the patch, constructing variant inputs to test adjacent code paths, and observing object lifetime stability under stress scenarios.
50%UnverifiedThe vulnerability was identified during a code review of the TCP protocol stack's state-transition logic, rather than discovered by chance through routine fuzz testing.
50%UnverifiedThe discussion around CVE-2026-98432 on Hacker News has 14 points and 10 comments.
50%UnverifiedPublic details about CVE-2026-98432 remain limited at present, and the conditions for multi-source cross-validation are not yet sufficient.
50%