{"version":"https://jsonfeed.org/version/1.1","title":"Patchfirst: SmarterTools vulnerabilities","home_page_url":"https://patchfirst.co/vendor/smartertools/","feed_url":"https://patchfirst.co/feed/vendor/smartertools.json","description":"New and newly exploited SmarterTools CVEs, with CISA KEV, EPSS and ATT&CK context. Newest 50 by publication or KEV listing.","language":"en-GB","items":[{"id":"CVE-2026-24423#kev","url":"https://patchfirst.co/cve/CVE-2026-24423/","title":"[KEV] CVE-2026-24423: SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability","content_text":"SmarterTools · SmarterMail. In CISA KEV since 2026-02-05, known ransomware use. ENISA EUVD lists it as exploited. EPSS 88.2% (higher than 99.77% of CVEs). CVSS 9.8 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 84.8 of 100.","summary":"SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability","date_published":"2026-02-05T00:00:00.000Z","date_modified":"2026-08-04T05:16:38.000Z","tags":["kev","ransomware","public-exploit","T1190","T1059"],"_patchfirst":{"reason":"kev","priority":84.8,"kev":{"dateAdded":"2026-02-05","ransomware":true},"epss":{"score":0.88177,"percentile":0.99766},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1"},"vendor":"SmarterTools","product":"SmarterMail","techniqueIds":["T1190","T1059"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}},{"id":"CVE-2025-52691#kev","url":"https://patchfirst.co/cve/CVE-2025-52691/","title":"[KEV] CVE-2025-52691: SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability","content_text":"SmarterTools · SmarterMail. In CISA KEV since 2026-01-26, known ransomware use. ENISA EUVD lists it as exploited. EPSS 85.7% (higher than 99.72% of CVEs). CVSS 10.0 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter; T1505.003 Web Shell. Named in 1 threat report. Priority 88.8 of 100.","summary":"SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability","date_published":"2026-01-26T00:00:00.000Z","date_modified":"2026-10-07T12:10:00.000Z","tags":["kev","ransomware","public-exploit","T1190","T1059","T1505.003"],"_patchfirst":{"reason":"kev","priority":88.8,"kev":{"dateAdded":"2026-01-26","ransomware":true},"epss":{"score":0.85655,"percentile":0.99725},"cvss":{"score":10,"severity":"CRITICAL","version":"3.1"},"vendor":"SmarterTools","product":"SmarterMail","techniqueIds":["T1190","T1059","T1505.003"],"reportCount":1,"hasPublicExploit":true,"euvdExploited":true}},{"id":"CVE-2026-23760#kev","url":"https://patchfirst.co/cve/CVE-2026-23760/","title":"[KEV] CVE-2026-23760: SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability","content_text":"SmarterTools · SmarterMail. In CISA KEV since 2026-01-26, known ransomware use. ENISA EUVD lists it as exploited. EPSS 96.4% (higher than 99.88% of CVEs). CVSS 9.8 CRITICAL. Public exploit code exists. ATT&CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter; T1078 Valid Accounts. Priority 84.8 of 100.","summary":"SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability","date_published":"2026-01-26T00:00:00.000Z","date_modified":"2026-08-04T05:16:38.000Z","tags":["kev","ransomware","public-exploit","T1190","T1059","T1078"],"_patchfirst":{"reason":"kev","priority":84.8,"kev":{"dateAdded":"2026-01-26","ransomware":true},"epss":{"score":0.96432,"percentile":0.99881},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1"},"vendor":"SmarterTools","product":"SmarterMail","techniqueIds":["T1190","T1059","T1078"],"reportCount":0,"hasPublicExploit":true,"euvdExploited":true}}]}