  {"id":39751,"date":"2026-03-20T10:48:53","date_gmt":"2026-03-20T14:48:53","guid":{"rendered":"https:\/\/www.yorku.ca\/uit\/?p=39751"},"modified":"2026-03-20T09:53:18","modified_gmt":"2026-03-20T14:53:18","slug":"zoom-workplace-for-windows-vulnerability-cve-2026-30903","status":"publish","type":"post","link":"https:\/\/www.yorku.ca\/uit\/2026\/03\/zoom-workplace-for-windows-vulnerability-cve-2026-30903\/","title":{"rendered":"Zoom Workplace for Windows Vulnerability (CVE-2026-30903)"},"content":{"rendered":"<div class=\"postie-post\">\n<div>\n<div class=\"WordSection1\">\n<p class=\"MsoNormal\"><o:p>&nbsp;<\/o:p><\/p>\n<div align=\"center\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"725\" style=\"width:544.0pt;background:#E0E0E0;border-collapse:collapse\">\n<tbody>\n<tr>\n<td style=\"border:solid windowtext 1.0pt;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\"><\/td>\n<\/tr>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"600\" style=\"width:450.0pt;background:white;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td style=\"padding:0cm 0cm 0cm 0cm\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:6.75pt 13.5pt 6.75pt 13.5pt\">\n<p class=\"MsoNormal\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><img loading=\"lazy\" decoding=\"async\" width=\"688\" height=\"100\" style=\"width:7.1666in;height:1.0416in\" id=\"Picture_x0020_2\" src=\"https:\/\/www.yorku.ca\/uit\/wp-content\/uploads\/sites\/805\/2026\/03\/image001-6.png\" alt=\"A picture containing text  Description automatically generated\"><\/span><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/p>\n<p class=\"MsoNormal\" align=\"center\" style=\"text-align:center;page-break-after:avoid\">  <span style=\"font-family:\"IBM Plex Sans\",sans-serif;mso-fareast-language:EN-US\"><o:p>&nbsp;<\/o:p><\/span><\/p>\n<p class=\"MsoNormal\" align=\"center\" style=\"margin-bottom:12.0pt;text-align:center;line-height:105%\">  <b><span style=\"font-family:\"IBM Plex Sans\",sans-serif\">Information Security Advisory<\/span><\/b><span class=\"xxxxxxxxnormaltextrun\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/span><\/p>\n<p style=\"background:white\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black;background:white\"><br \/>  A recently disclosed vulnerability in Zoom Workplace for Windows ( CVE\u20112026\u201130903) allows unauthenticated remote attackers to escalate privileges by exploiting improper control of file names or paths.<o:p><\/o:p><\/span><\/p>\n<p style=\"background:white\"><b><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black\">Severity level:<br \/>  <\/span><\/b><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black\">CVSS Score: 9.6\/Critical<br \/>  <b><br \/>  Description<\/b>:<br \/>  <span style=\"background:white\">Zoom Workplace for Windows includes a Mail feature that processes user-supplied file references. In vulnerable versions, this component fails to properly validate file paths, enabling attackers to manipulate file system operations.   This flaw allows an unauthenticated remote attacker to manipulate file system operations by supplying crafted path inputs. As a result, the attacker may escalate privileges on the affected system, gaining unauthorized access or control.<br \/>  <\/span><b><br \/>  Affected Versions: <br \/>  <\/b><span style=\"background:white\">Zoom Workplace for Windows before version 6.6.0.<br \/>  <b><br \/>  Impact:<br \/>  <\/b>Successful exploitation potentially allows attackers to Escalate privileges on the target systems.<br \/>  <\/span><b><br \/>  Resolution:<br \/>  <\/b><span style=\"background:white\">Upgrade to Zoom Workplace for Windows version 6.6.0 or later immediately.<br \/>  <\/span><b><br \/>  Reference:<\/b><\/span><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/p>\n<p class=\"elementtoproof\" style=\"background:white\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black\"><a href=\"https:\/\/www.zoom.com\/en\/trust\/security-bulletin\/\"><span style=\"color:black;text-decoration:none\">https:\/\/www.zoom.com\/en\/trust\/security-bulletin\/<\/span><\/a><\/span><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/p>\n<p class=\"elementtoproof\" style=\"background:white\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black\"><a href=\"https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-30903\"><span style=\"color:black;text-decoration:none\">https:\/\/nvd.nist.gov\/vuln\/detail\/CVE-2026-30903<\/span><\/a><\/span><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/p>\n<p class=\"elementtoproof\" style=\"background:white\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black\"><a href=\"https:\/\/www.tenable.com\/cve\/CVE-2026-30903\/plugins\"><span style=\"color:black;text-decoration:none\">https:\/\/www.tenable.com\/cve\/CVE-2026-30903\/plugins<\/span><\/a><\/span><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/p>\n<p class=\"elementtoproof\" style=\"background:white\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p>&nbsp;<\/o:p><\/span><\/p>\n<p class=\"elementtoproof\" style=\"background:white\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif;color:black;background:white\"><o:p>&nbsp;<\/o:p><\/span><\/p>\n<p class=\"MsoNormal\" style=\"margin-bottom:12.0pt;line-height:105%\"><span style=\"font-size:10.0pt;line-height:105%;font-family:\"IBM Plex Sans\",sans-serif;color:black;background:white\"><\/p>\n<p>  Information&nbsp;Security<\/span><span style=\"font-family:\"IBM Plex Sans\",sans-serif\">&nbsp;<o:p><\/o:p><\/span><\/p>\n<p class=\"MsoNormal\"><b><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><\/p>\n<p>  Contact <\/span><\/b><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p><\/o:p><\/span><\/p>\n<p class=\"MsoNormal\" style=\"page-break-after:avoid\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif\">IT Client Services at  <\/span><a href=\"mailto:askIT@yorku.ca\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><a href=\"mailto:askIT@yorku.ca\" >askIT@yorku.ca<\/a><\/span><\/a><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"> or 416 736 5800  <span style=\"color:#548235\"><o:p><\/o:p><\/span><\/span><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:6.75pt 13.5pt 6.75pt 13.5pt\">\n<p class=\"MsoNormal\"><span style=\"font-family:\"IBM Plex Sans\",sans-serif\"><o:p>&nbsp;<\/o:p><\/span><\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" width=\"100%\" style=\"width:100.0%;border-collapse:collapse\">\n<tbody>\n<tr>\n<td width=\"100%\" style=\"width:100.0%;padding:0cm 0cm 0cm 0cm\">\n<table class=\"MsoNormalTable\" border=\"0\" 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Severity level: CVSS Score: 9.6\/Critical Description: Zoom Workplace for Windows includes a Mail feature that processes user-supplied file references. In vulnerable versions, this [&hellip;]<\/p>\n","protected":false},"author":212,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","footnotes":""},"categories":[29],"tags":[],"class_list":["post-39751","post","type-post","status-publish","format-standard","hentry","category-news"],"taxonomy_info":{"category":[{"value":29,"label":"News"}]},"featured_image_src_large":false,"author_info":{"display_name":"aalaily","author_link":"https:\/\/www.yorku.ca\/uit\/author\/aalaily\/"},"comment_info":"","category_info":[{"term_id":29,"name":"News","slug":"news","term_group":0,"term_taxonomy_id":3,"taxonomy":"category","description":"","parent":0,"count":487,"filter":"raw","cat_ID":29,"category_count":487,"category_description":"","cat_name":"News","category_nicename":"news","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/posts\/39751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/users\/212"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/comments?post=39751"}],"version-history":[{"count":0,"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/posts\/39751\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/media?parent=39751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/categories?post=39751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yorku.ca\/uit\/wp-json\/wp\/v2\/tags?post=39751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}