CVE-2026-80585

creationtimestamp| type| source ---|---|--- 2026-08-27 08:40:05+00:00| seen| https://bsky.app/profile/stackflag.bsky.social/post/3mu2h66iszf2t 2026-08-27 16:23:29+00:00| seen| https://infosec.exchange/users/cR0w/statuses/117168393907382774...

DEBIAN-CVE-2026-80585

In the Linux kernel, the following vulnerability has been resolved: mptcp: fastopen: only mark MPTFO subflows with SYN data Passive TCP Fast Open accepts a valid-cookie SYN even when it carries no data. In that case the child socket's receive queue is intentionally left empty...