CVE-2026-80586
In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote p
CVSS
9.8
Critical
EPSS
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KEV
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Exploit Today
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0-100
Published: Aug 26, 2026 · Last modified: Aug 27, 2026
Not enough EPSS history yet.
In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote peer could send a malformed DSS with a wrong size, followed by another DSS or MPC + Data. In this case, the first suboption will be ignored, but leaving some fields written, which could lead to inconsistency or access uninitialized data. Explicitly reset the fields that could have been modified in case of unexpected size.
- git.kernel.orghttps://git.kernel.org/stable/c/15e35fdad7a5576bf3f1c8d688877aeb5d1b506b
- git.kernel.orghttps://git.kernel.org/stable/c/192878df582c51d440bf7b91a15f297f29f2b596
- git.kernel.orghttps://git.kernel.org/stable/c/1fade1b2ac5b1a4948e538fae7313bea57b5ac36
- git.kernel.orghttps://git.kernel.org/stable/c/26dac5c9ffb20812b475fdf253eb04fab99cff3b
- git.kernel.orghttps://git.kernel.org/stable/c/27ed642a4e7e4b5df4b8522c72c457a67e052493
- git.kernel.orghttps://git.kernel.org/stable/c/35772b4981f38ba8059372cde8753e8e477e98ec
- git.kernel.orghttps://git.kernel.org/stable/c/4e80eff5c1c893aca2ac1d202f0b256d2e52ecde
- git.kernel.orghttps://git.kernel.org/stable/c/b1256090816ec46011601e084be580731df58fc7
No related CVEs by CWE or product.