{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-11967: Arbitrary code execution in MobaXterm Personal Edition (Portable)","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-11967","status":"final","version":"1","initial_release_date":"2026-06-12T13:30:10.610Z","current_release_date":"2026-06-12T14:01:05.844Z","revision_history":[{"date":"2026-06-12T13:30:10.610Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"MobaXterm Personal Edition (Portable), in its 26.3 version (Build 5154), allows arbitrary code execution by loading a malicious DLL located in the same directory as the portable executable. Because the application automatically loads the winspool.drv library from that location during startup, an attacker with local access can place a specially crafted DLL alongside the executable to be executed when the victim launches the application.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-11967 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-11967"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-11967"},{"category":"external","summary":"incibe.es","url":"https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-mobateks-mobaxterm-personal-edition-portable"}]},"product_tree":{"branches":[{"category":"vendor","name":"Mobatek","branches":[{"category":"product_name","name":"MobaXterm Personal Edition (Portable)","branches":[{"category":"product_version","name":"26.3","product":{"name":"Mobatek MobaXterm Personal Edition (Portable) 26.3","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:mobatek:mobaxterm_personal_edition_\\(portable\\):26.3:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"26.4","product":{"name":"Mobatek MobaXterm Personal Edition (Portable) 26.4","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:mobatek:mobaxterm_personal_edition_\\(portable\\):26.3:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-11967","title":"Arbitrary code execution in MobaXterm Personal Edition (Portable)","notes":[{"category":"description","text":"MobaXterm Personal Edition (Portable), in its 26.3 version (Build 5154), allows arbitrary code execution by loading a malicious DLL located in the same directory as the portable executable. Because the application automatically loads the winspool.drv library from that location during startup, an attacker with local access can place a specially crafted DLL alongside the executable to be executed when the victim launches the application.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"],"fixed":["CSAFPID-2"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","baseScore":8.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 26.4.","product_ids":["CSAFPID-1"],"url":"https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-mobateks-mobaxterm-personal-edition-portable"}]}]}