{"id":79313,"date":"2026-06-04T21:46:28","date_gmt":"2026-06-04T18:16:28","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-25551-seagull-software-bartender-deserialization-privilege-escalation-via-net-remoting-service\/"},"modified":"2026-06-04T21:46:28","modified_gmt":"2026-06-04T18:16:28","slug":"cve-2026-25551-seagull-software-bartender-deserialization-privilege-escalation-via-net-remoting-service","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-25551-seagull-software-bartender-deserialization-privilege-escalation-via-net-remoting-service\/","title":{"rendered":"CVE-2026-25551 &#8211; Seagull Software BarTender Deserialization Privilege Escalation via .NET Remoting Service"},"content":{"rendered":"<p>CVE ID :CVE-2026-25551<\/p>\n<p>  Published : June 4, 2026, 6:16 p.m. | 16\u00a0minutes ago<\/p>\n<p>  Description :Seagull Software BarTender 2021 R1 through 12.0.1\u00a0contains an insecure deserialization vulnerability that allows low-privileged local users to escalate privileges. The DataServiceSingleton .NET Remoting endpoint is bound to localhost on TCP port 7375 via BtSystem.Service.exe, limiting the attack surface to local access only. The endpoint is configured with BinaryServerFormatterSinkProvider and TypeFilterLevel set to Full. A low-privileged local attacker can send YSoSerial.NET-generated BinaryFormatter payloads to the localhost-bound endpoint to achieve code execution as NT AUTHORITY\\SYSTEM.<\/p>\n<p>  Severity: 8.5 | 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-2026-25551 Published : June 4, 2026, 6:16 p.m. | 16\u00a0minutes ago Description :Seagull Software BarTender 2021 R1 through 12.0.1\u00a0contains an insecure deserialization vulnerability that allows low-privileged local users to escalate privileges. The DataServiceSingleton .NET Remoting endpoint is bound to localhost on TCP port 7375 via BtSystem.Service.exe, limiting the attack surface to local access &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-79313","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79313","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=79313"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/79313\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=79313"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=79313"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=79313"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}