An update of the linux package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - mptcp: close TOCTOU race while computing rcv_wnd The MPTCP output path access locklessly the MPTCP-level     ack_seq in multiple times, using possibly different values for the data_ack in the DSS option and to     compute the announced rcv wnd for the same packet. Refactor the cote to avoid inconsistencies which may     confuse the peer. Also ensure that the MPTCP level rcv wnd is updated only when the egress packet actually     contains a DSS ack. (CVE-2026-63867)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
328499	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-110 (ALASKERNEL-5.15-2026-110)	Nessus	Amazon Linux Local Security Checks	7/20/2026	7/31/2026	medium
329326	Photon OS 5.0: Linux PHSA-2026-5.0-0926	Nessus	PhotonOS Local Security Checks	7/24/2026	7/28/2026	high
328067	Linux Distros Unpatched Vulnerability : CVE-2026-63867	Nessus	Misc.	7/20/2026	7/25/2026	high
322944	Photon OS 5.0: Linux PHSA-2026-5.0-0895	Nessus	PhotonOS Local Security Checks	6/26/2026	8/1/2026	high
327383	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1925)	Nessus	Amazon Linux Local Security Checks	7/16/2026	7/31/2026	high
327380	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1924)	Nessus	Amazon Linux Local Security Checks	7/16/2026	7/31/2026	medium
328493	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1968)	Nessus	Amazon Linux Local Security Checks	7/20/2026	7/31/2026	high

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