{"id":81884,"date":"2026-07-12T19:46:49","date_gmt":"2026-07-12T16:16:49","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-10664-out-of-bounds-write-in-nrf70-wi-fi-driver-power-save-event-handler-unbounded-twt-flow-count\/"},"modified":"2026-07-12T19:46:49","modified_gmt":"2026-07-12T16:16:49","slug":"cve-2026-10664-out-of-bounds-write-in-nrf70-wi-fi-driver-power-save-event-handler-unbounded-twt-flow-count","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-10664-out-of-bounds-write-in-nrf70-wi-fi-driver-power-save-event-handler-unbounded-twt-flow-count\/","title":{"rendered":"CVE-2026-10664 &#8211; Out-of-bounds write in nRF70 Wi-Fi driver power-save event handler (unbounded TWT flow count)"},"content":{"rendered":"<p>CVE ID :CVE-2026-10664<\/p>\n<p>  Published : July 12, 2026, 4:16 p.m. | 1\u00a0hour, 11\u00a0minutes ago<\/p>\n<p>  Description :The nRF70 Wi-Fi driver&#8217;s power-save event handler nrf_wifi_event_proc_get_power_save_info() in drivers\/wifi\/nrf_wifi\/src\/wifi_mgmt.c copied TWT (Target Wake Time) flow entries from an nrf_wifi_umac_event_power_save_info event into the fixed-size twt_flows[WIFI_MAX_TWT_FLOWS] (8-element) array of a caller-supplied struct wifi_ps_config, looping over event-provided num_twt_flows without validating it against WIFI_MAX_TWT_FLOWS or checking event_len. When num_twt_flows exceeds 8, the handler writes past the destination array (which is typically on the caller&#8217;s stack, e.g. the wifi ps shell command) &#8212; an out-of-bounds write of ~40-byte TWT entries &#8212; and reads twt_flow_info[i] past the event buffer. The event is delivered by the nRF70 co-processor firmware in response to a host-initiated power-save GET, so reaching the overflow requires the firmware to emit a malformed or out-of-range event; the trust boundary is host-to-trusted-coprocessor rather than a direct remote-AP write, with over-the-air influence on the flow count being indirect and bounded by the 3-bit TWT flow-id space. Affected: builds with CONFIG_NRF70_STA_MODE on releases through v4.4.0. The fix rejects events with num_twt_flows &gt; WIFI_MAX_TWT_FLOWS or with event_len shorter than the claimed entries, and adds a NULL check on the caller buffer.<\/p>\n<p>  Severity: 5.0 | MEDIUM<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-10664 Published : July 12, 2026, 4:16 p.m. | 1\u00a0hour, 11\u00a0minutes ago Description :The nRF70 Wi-Fi driver&#8217;s power-save event handler nrf_wifi_event_proc_get_power_save_info() in drivers\/wifi\/nrf_wifi\/src\/wifi_mgmt.c copied TWT (Target Wake Time) flow entries from an nrf_wifi_umac_event_power_save_info event into the fixed-size twt_flows[WIFI_MAX_TWT_FLOWS] (8-element) array of a caller-supplied struct wifi_ps_config, looping over event-provided num_twt_flows without validating it against &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-81884","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=81884"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81884\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}