{"id":208118,"date":"2026-01-30T02:09:00","date_gmt":"2026-01-30T07:09:00","guid":{"rendered":"https:\/\/news-you-need.com\/index.php\/2026\/01\/30\/smartermail-fixes-critical-unauthenticated-rce-flaw-with-cvss-9-3-score\/"},"modified":"2026-01-30T07:55:08","modified_gmt":"2026-01-30T12:55:08","slug":"smartermail-fixes-critical-unauthenticated-rce-flaw-with-cvss-9-3-score","status":"publish","type":"post","link":"https:\/\/news-you-need.com\/index.php\/2026\/01\/30\/smartermail-fixes-critical-unauthenticated-rce-flaw-with-cvss-9-3-score\/","title":{"rendered":"SmarterMail Fixes Critical Unauthenticated RCE Flaw with CVSS 9.3 Score"},"content":{"rendered":"

SmarterMail Fixes Critical Unauthenticated RCE Flaw with CVSS 9.3 Score<\/a><\/p>\n

https:\/\/thehackernews.com\/2026\/01\/smartermail-fixes-critical.html<\/a><\/p>\n

Publish Date: 2026-01-30 02:09:00<\/a><\/p>\n

Source Domain: thehackernews.com<\/a><\/p>\n

\ue804Ravie Lakshmanan<\/span>\ue802Jan 30, 2026<\/span><\/span>Vulnerability \/ Email Security<\/span><\/p>\n

SmarterTools has addressed two more security flaws in SmarterMail email software, including one critical security flaw that could result in arbitrary code execution.<\/p>\n

The vulnerability, tracked as CVE-2026-24423<\/strong>, carries a CVSS score of 9.3 out of 10.0.<\/p>\n

“SmarterTools SmarterMail versions prior to build 9511 contain an unauthenticated remote code execution vulnerability in the ConnectToHub API method,” according to a description of the flaw in CVE.org.<\/p>\n

“The attacker could point the SmarterMail to the malicious HTTP server, which serves the malicious OS [operating system] command. This command will be executed by the vulnerable application.”<\/p>\n

watchTowr researchers Sina Kheirkhah and Piotr Bazydlo, CODE WHITE GmbH’s Markus Wulftange, and VulnCheck’s Cale Black have been credited with discovering and reporting the vulnerability.<\/p>\n

The security hole has been addressed in version Build 9511, released on January 15, 2026. The same build also patches another critical flaw (CVE-2026-23760, CVSS score: 9.3) that has since come under active exploitation in the wild.<\/p>\n

\"Cybersecurity\"<\/p>\n

In addition, SmarterTools has shipped fixes to plug a medium-severity security vulnerability (CVE-2026-25067, CVSS score: 6.9) that could allow an attacker to facilitate NTLM relay attacks and unauthorized network authentication. <\/p>\n

It has been described as a case of unauthenticated path coercion affecting the background-of-the-day preview endpoint.<\/p>\n

“The application base64-decodes attacker-supplied input and uses it as a filesystem path without validation,” VulnCheck noted in an alert.<\/p>\n

“On Windows systems, this allows UNC [Universal Naming Convention] paths to be resolved, causing the SmarterMail service to initiate outbound SMB authentication attempts to attacker-controlled hosts. This can be abused for credential coercion, NTLM relay attacks, and unauthorized network authentication.”<\/p>\n

The vulnerability has been patched in Build 9518, released on…<\/p>\n

Source<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

SmarterMail Fixes Critical Unauthenticated RCE Flaw with CVSS 9.3 Score https:\/\/thehackernews.com\/2026\/01\/smartermail-fixes-critical.html Publish Date: 2026-01-30 02:09:00…<\/p>\n","protected":false},"author":1,"featured_media":208119,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/blogger.googleusercontent.com\/img\/b\/R29vZ2xl\/AVvXsEg68yf4tK-m7j1I6zRCo-SBeQ4cCXmLiwvPRMoEXS_I8m7V53UUmULEbWr2vVAEJd34U0hknt8J5wnzcNv1kGayBLApw6mu0UmRZRyCstoXJAteTDrnRZBnoh5n3ROzBarjsRgPXeV_1WDsxQmg5ysAETrtYI3L9oNWnX246xTksVuWWqi34CzJCJnFc0uv\/s1700-e365\/smartertools.jpg","fifu_image_alt":"","footnotes":""},"categories":[15],"tags":[24,27],"class_list":["post-208118","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity","tag-cybersecurity","tag-vulnerability"],"_links":{"self":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/208118"}],"collection":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/comments?post=208118"}],"version-history":[{"count":1,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/208118\/revisions"}],"predecessor-version":[{"id":208120,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/posts\/208118\/revisions\/208120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media\/208119"}],"wp:attachment":[{"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/media?parent=208118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/categories?post=208118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/news-you-need.com\/index.php\/wp-json\/wp\/v2\/tags?post=208118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}