{"id":"CVE-2026-46307","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-46307","generatedAt":"2026-10-28T04:16:41.285Z","title":"In the Linux kernel, the following vulnerability has been resolved: wifi: ath5k: do not access array OOB Vincent reports: > The ath5k driver seems to do an array-index-out-of-bounds access as > shown by the UBSAN kernel message: > UBSAN:…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath5k: do not access array OOB\n\nVincent reports:\n> The ath5k driver seems to do an array-index-out-of-bounds access as\n> shown by the UBSAN kernel message:\n> UBSAN: array-index-out-of-bounds in drivers/net/wireless/ath/ath5k/base.c:1741:20\n> index 4 is out of range for type 'ieee80211_tx_rate [4]'\n> ...\n> Call Trace:\n>  <TASK>\n>  dump_stack_lvl+0x5d/0x80\n>  ubsan_epilogue+0x5/0x2b\n>  __ubsan_handle_out_of_bounds.cold+0x46/0x4b\n>  ath5k_tasklet_tx+0x4e0/0x560 [ath5k]\n>  tasklet_action_common+0xb5/0x1c0\n\nIt is real. 'ts->ts_final_idx' can be 3 on 5212, so:\n   info->status.rates[ts->ts_final_idx + 1].idx = -1;\nwith the array defined as:\n   struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES];\nwhile the size is:\n   #define IEEE80211_TX_MAX_RATES  4\nis indeed bogus.\n\nSet this 'idx = -1' sentinel only if the array index is less than the\narray size. As mac80211 will not look at rates beyond the size\n(IEEE80211_TX_MAX_RATES).\n\nNote: The effect of the OOB write is negligible. It just overwrites the\nnext member of info->status, i.e. ack_signal.","published":"2026-06-08T17:16:50.000Z","lastModified":"2026-10-15T02:19:53.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":8.3,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L"},"cwe":["CWE-125"],"affected":["linux/linux kernel"],"epss":{"score":0.00236,"percentile":0.14556,"date":"2026-10-27","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 (0.24%). 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/568173ad9bd0b46cc6cd937dea8791e9b5eefa57","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/744c19e266b0d2628c5951439195dcef27eadacf","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/83226c71af53fb9b3cad40cb9a9a79f36d68c020","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9dd6aae4bc7bfa11088d928670a3315eae542769","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d6869537013b1f21b292342752d97868b79b5934","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d748603f12baff112caa3ab7d39f50100f010dbd","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e9f1081bc775146156def0dbc821b92f35d56afb","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ecb1c163166759dec004c1fdb9709b8a5992fc8e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html","source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46307","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."}