{"id":79545,"date":"2026-06-10T05:46:33","date_gmt":"2026-06-10T02:16:33","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-45542-esf-idf-heap-buffer-overflow-in-protocomm-security2-over-bluetooth\/"},"modified":"2026-06-10T05:46:33","modified_gmt":"2026-06-10T02:16:33","slug":"cve-2026-45542-esf-idf-heap-buffer-overflow-in-protocomm-security2-over-bluetooth","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-45542-esf-idf-heap-buffer-overflow-in-protocomm-security2-over-bluetooth\/","title":{"rendered":"CVE-2026-45542 &#8211; ESF-IDF: Heap buffer overflow in protocomm Security2 over Bluetooth"},"content":{"rendered":"<p>CVE ID :CVE-2026-45542<\/p>\n<p>  Published : June 10, 2026, 2:16 a.m. | 21\u00a0minutes ago<\/p>\n<p>  Description :ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.4, and 6.0, a heap buffer overflow exists in the Security Scheme 2 (SRP6a) session-setup path of the protocomm component. The first-phase handler (handle_session_command0() in components\/protocomm\/src\/security\/security2.c) trusts the length of a client-supplied protobuf field for the SRP6a username and copies it into a buffer whose size is derived from a narrower destination type. The resulting truncation-versus-copy asymmetry corrupts the heap when an oversized value is supplied. This issue has been patched in versions 5.2.7, 5.3.6, 5.4.5, 5.5.5, and 6.0.1.<\/p>\n<p>  Severity: 7.1 | HIGH<\/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-2026-45542 Published : June 10, 2026, 2:16 a.m. | 21\u00a0minutes ago Description :ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.6, 5.3.5, 5.4.4, 5.5.4, and 6.0, a heap buffer overflow exists in the Security Scheme 2 (SRP6a) session-setup path of the protocomm component. The first-phase handler (handle_session_command0() in components\/protocomm\/src\/security\/security2.c) &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-79545","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79545","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=79545"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79545\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=79545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=79545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=79545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}