{"id":"CVE-2026-63987","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-63987","generatedAt":"2026-10-28T00:28:20.630Z","title":"In the Linux kernel, the following vulnerability has been resolved: ethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES ethnl_update_profile() walks the ETHTOOL_A_PROFILE_IRQ_MODERATION nest list with an index 'i' and writes…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: coalesce: cap profile updates at NET_DIM_PARAMS_NUM_PROFILES\n\nethnl_update_profile() walks the ETHTOOL_A_PROFILE_IRQ_MODERATION\nnest list with an index 'i' and writes new_profile[i++] without\nbounding i. The destination is kmemdup()'d at NET_DIM_PARAMS_NUM_PROFILES\nentries (5), but the Netlink nest count is entirely user-controlled.\nNetlink policies do not have support for constraining the number\nof nested entries (or number of multi-attr entries).","published":"2026-07-19T16:17:18.000Z","lastModified":"2026-10-19T21:17:17.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["linux/linux kernel"],"epss":{"score":0.00129,"percentile":0.02526,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0c02c190bcd9822477038ff2cee10ea584ac1b1d","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6205f7166d2dd14a017a5802c81e5bd1421a8635","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7281b096b072f6c6e30420e3467d738f2e4c4b57","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d4c9cc7c47781c6f4fa29d80a1193a8bcd1525bc","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63987","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}