{"id":"CVE-2021-47028","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-47028","generatedAt":"2026-10-27T21:48:23.437Z","title":"In the Linux kernel, the following vulnerability has been resolved: mt76: mt7915: fix txrate reporting Properly check rate_info to fix unexpected reporting. [ 1215.161863] Call trace: [ 1215.164307] cfg80211_calculate_bitrate+0x124/0x200 [cfg80211] […","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmt76: mt7915: fix txrate reporting\n\nProperly check rate_info to fix unexpected reporting.\n\n[ 1215.161863] Call trace:\n[ 1215.164307]  cfg80211_calculate_bitrate+0x124/0x200 [cfg80211]\n[ 1215.170139]  ieee80211s_update_metric+0x80/0xc0 [mac80211]\n[ 1215.175624]  ieee80211_tx_status_ext+0x508/0x838 [mac80211]\n[ 1215.181190]  mt7915_mcu_get_rx_rate+0x28c/0x8d0 [mt7915e]\n[ 1215.186580]  mt7915_mac_tx_free+0x324/0x7c0 [mt7915e]\n[ 1215.191623]  mt7915_queue_rx_skb+0xa8/0xd0 [mt7915e]\n[ 1215.196582]  mt76_dma_cleanup+0x7b0/0x11d0 [mt76]\n[ 1215.201276]  __napi_poll+0x38/0xf8\n[ 1215.204668]  napi_workfn+0x40/0x80\n[ 1215.208062]  process_one_work+0x1fc/0x390\n[ 1215.212062]  worker_thread+0x48/0x4d0\n[ 1215.215715]  kthread+0x120/0x128\n[ 1215.218935]  ret_from_fork+0x10/0x1c","published":"2024-02-28T09:15:39.000Z","lastModified":"2026-08-04T10:16:42.000Z","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":[],"affected":["linux/linux kernel"],"epss":{"score":0.00351,"percentile":0.28513,"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 (0.35%). 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/4bd926e5ca88eac4d95eacb806b229f8729bc62e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f43b941fd61003659a3f0e039595e5e525917aa8","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4bd926e5ca88eac4d95eacb806b229f8729bc62e","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/dfc8a71448c7d4fec38fb22bdc8a76d79c14b6da","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/stable/c/f43b941fd61003659a3f0e039595e5e525917aa8","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-47028","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."}