<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Patchfirst: SmarterTools vulnerabilities</title><link>https://patchfirst.co/vendor/smartertools/</link><atom:link href="https://patchfirst.co/feed/vendor/smartertools.xml" rel="self" type="application/rss+xml"/><description>New and newly exploited SmarterTools CVEs, with CISA KEV, EPSS and ATT&amp;CK context. Newest 50 by publication or KEV listing.</description><language>en-gb</language><ttl>360</ttl><lastBuildDate>Sat, 31 Oct 2026 05:11:25 GMT</lastBuildDate><item><title>[KEV] CVE-2026-24423: SmarterTools SmarterMail Missing Authentication for Critical Function Vulnerability</title><link>https://patchfirst.co/cve/CVE-2026-24423/</link><guid isPermaLink="false">CVE-2026-24423#kev</guid><pubDate>Thu, 05 Feb 2026 00:00:00 GMT</pubDate><description>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&amp;CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter. Priority 84.8 of 100.</description><category>kev</category><category>ransomware</category><category>public-exploit</category><category>T1190</category><category>T1059</category></item><item><title>[KEV] CVE-2025-52691: SmarterTools SmarterMail Unrestricted Upload of File with Dangerous Type Vulnerability</title><link>https://patchfirst.co/cve/CVE-2025-52691/</link><guid isPermaLink="false">CVE-2025-52691#kev</guid><pubDate>Mon, 26 Jan 2026 00:00:00 GMT</pubDate><description>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&amp;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.</description><category>kev</category><category>ransomware</category><category>public-exploit</category><category>T1190</category><category>T1059</category><category>T1505.003</category></item><item><title>[KEV] CVE-2026-23760: SmarterTools SmarterMail Authentication Bypass Using an Alternate Path or Channel Vulnerability</title><link>https://patchfirst.co/cve/CVE-2026-23760/</link><guid isPermaLink="false">CVE-2026-23760#kev</guid><pubDate>Mon, 26 Jan 2026 00:00:00 GMT</pubDate><description>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&amp;CK: T1190 Exploit Public-Facing Application; T1059 Command and Scripting Interpreter; T1078 Valid Accounts. Priority 84.8 of 100.</description><category>kev</category><category>ransomware</category><category>public-exploit</category><category>T1190</category><category>T1059</category><category>T1078</category></item></channel></rss>