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THREAT OPS › Threat News › [NVD] CVE-2026-80989 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Mark the connection down when bringing it up fails Every failure path in tbnet_connected_work() undoes its own work and returns without clearing login_sent, so the connection still looks estab

[NVD] CVE-2026-80989 (HIGH 8.8) — In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: Mark the connection down when bringing it up fails Every failure path in tbnet_connected_work() undoes its own work and returns without clearing login_sent, so the connection still looks estab

mednvdPublished 2026-09-11

CVE-2026-80989 CVSS: 8.8 HIGH Published: 2026-09-11T20:19:05.730

In the Linux kernel, the following vulnerability has been resolved:

net: thunderbolt: Mark the connection down when bringing it up fails

Every failure path in tbnet_connected_work() undoes its own work and returns without clearing login_sent, so the connection still looks established. The next tbnet_tear_down() therefore takes its

Indicators of compromise

CVE-2026-80989cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-80989