{"id":77098,"date":"2026-02-13T22:47:28","date_gmt":"2026-02-13T19:17:28","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-21878-bacnet-stack-improperly-limits-pathnames-to-a-restricted-directory\/"},"modified":"2026-02-13T22:47:28","modified_gmt":"2026-02-13T19:17:28","slug":"cve-2026-21878-bacnet-stack-improperly-limits-pathnames-to-a-restricted-directory","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-21878-bacnet-stack-improperly-limits-pathnames-to-a-restricted-directory\/","title":{"rendered":"CVE-2026-21878 &#8211; BACnet Stack Improperly Limits Pathnames to a Restricted Directory"},"content":{"rendered":"<p>CVE ID : CVE-2026-21878<\/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 1.5.0.rc3, a vulnerability has been discovered in BACnet Stack&#8217;s file writing functionality where there is no validation of user-provided file paths, allowing attackers to write files to arbitrary directories. This affects apps\/readfile\/main.c and ports\/posix\/bacfile-posix.c. This vulnerability is fixed in 1.5.0.rc3.<\/p>\n<p>Severity: 7.5 | 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-2026-21878 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 1.5.0.rc3, a vulnerability has been discovered in BACnet Stack&#8217;s file writing functionality where there is no validation of user-provided file paths, allowing &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-77098","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77098","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=77098"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77098\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77098"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}