CVE-2026-80586
Last modified
CVE-2026-80586 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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..
Description
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 15e35fdad7a5576bf3f1c8d688877aeb5d1b506b; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < b1256090816ec46011601e084be580731df58fc7; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 192878df582c51d440bf7b91a15f297f29f2b596; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 26dac5c9ffb20812b475fdf253eb04fab99cff3b; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 4e80eff5c1c893aca2ac1d202f0b256d2e52ecde; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 1fade1b2ac5b1a4948e538fae7313bea57b5ac36; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 27ed642a4e7e4b5df4b8522c72c457a67e052493; >= 648ef4b88673dadb8463bf0d4b10fbf33d55def8, < 35772b4981f38ba8059372cde8753e8e477e98ec |
| Linux | Linux | 5.6 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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How Strix Helps
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