CVE-2026-31679High· 7.1▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: openvswitch: validate MPLS set/set_masked payload length validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action hand…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.2%
Last analysed / modified upstream
In the Linux kernel, the following vulnerability has been resolved:
openvswitch: validate MPLS set/set_masked payload length
validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls).
Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes.
Reject invalid MPLS action payload lengths early.
Linux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 68f32ef0683c8d1c05cd2e4f16818fa63ff59c6fLinux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 4cae986225f8b8679ad86b924918e7d75a96aa61Linux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 8ed7b9930cbc3bc71f868fa79a68700ac88d586aLinux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < c1f97152df8dfb17e855ddf0fc409b7bd13e9700Linux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 98de18d327ef8cbbb704980e359e4872d8c28997Linux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < bd50c7484c3bb34097571c1334174fb8b7408036Linux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 2ca33b88a79ca42f017ae0f7011280325655438eLinux >= fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3 < 546b68ac893595877ffbd7751e5c55fd1c43ede6Linux 5.5Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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