GoKawiilUbuntu still unpatched for critical kernel flaw weeks after Debian fix
A critical remote-code-execution bug in the Linux kernel's TCP stack, CVE-2026-98432 (CVSS 9.8), has existed since 2016 and affects nearly all Linux servers. Debian shipped a patch on October 16, but as of November 2 every supported Ubuntu release, including LTS versions, is still listed as vulnerable, more than two weeks later and days after a working root exploit was reportedly demonstrated.
GoKawiil's interpretation of the reporting above, not reported fact.
The delay undercuts Canonical's marketing language around 'timely patches' and 'enterprise-grade' security, since volunteer-run distributions like Debian, Arch and Alpine shipped fixes faster despite having fewer resources than a commercial vendor. For organizations relying on Ubuntu LTS for production servers, an unpatched critical remote root exploit could represent a serious operational risk, prompting at least one user to take affected servers offline and consider migrating away from the distro.
- CVE-2026-98432 is a 9.8-severity remote root exploit in the Linux kernel's TCP code, present since 2016.
- Debian patched the flaw on October 16; Ubuntu had not shipped a fix as of November 2, over two weeks later.
- Volunteer-run distros like Debian, Arch, and Alpine fixed it before Canonical, a commercial vendor that sells security subscriptions.
Source: chalmovsky.com, 2026-11-02
Published there as: “WTF Ubuntu?”
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