{"id":77092,"date":"2026-02-13T22:47:31","date_gmt":"2026-02-13T19:17:31","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-26264-bacnet-stack-writeproperty-decoding-length-underflow-leads-to-oob-read-and-crash\/"},"modified":"2026-02-13T22:47:31","modified_gmt":"2026-02-13T19:17:31","slug":"cve-2026-26264-bacnet-stack-writeproperty-decoding-length-underflow-leads-to-oob-read-and-crash","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-26264-bacnet-stack-writeproperty-decoding-length-underflow-leads-to-oob-read-and-crash\/","title":{"rendered":"CVE-2026-26264 &#8211; BACnet Stack WriteProperty decoding length underflow leads to OOB read and crash"},"content":{"rendered":"<p>CVE ID : CVE-2026-26264<\/p>\n<p>Published :  Feb. 13, 2026, 7:17 p.m. | 1\u00a0hour, 12\u00a0minutes ago<\/p>\n<p>Description : BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed WriteProperty request can trigger a length underflow in the BACnet stack, leading to an out\u2011of\u2011bounds read and a crash (DoS). The issue is in wp.c within wp_decode_service_request. When decoding the optional priority context tag, the code passes apdu_len &#8211; apdu_size to bacnet_unsigned_context_decode without validating that apdu_size<br \/>\nSeverity: 7.8 | 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-2026-26264 Published : Feb. 13, 2026, 7:17 p.m. | 1\u00a0hour, 12\u00a0minutes ago Description : BACnet Stack is a BACnet open source protocol stack C library for embedded systems. Prior to 1.5.0rc4 and 1.4.3rc2, a malformed WriteProperty request can trigger a length underflow in the BACnet stack, leading to an out\u2011of\u2011bounds read and &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-77092","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77092","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=77092"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77092\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}