{"id":63637,"date":"2025-08-09T17:35:27","date_gmt":"2025-08-09T17:35:27","guid":{"rendered":""},"modified":"2025-10-21T04:13:14","modified_gmt":"2025-10-21T10:13:14","slug":"cve-2025-30327-integer-overflow-vulnerability-in-incopy-leading-to-potential-arbitrary-code-execution","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-30327-integer-overflow-vulnerability-in-incopy-leading-to-potential-arbitrary-code-execution\/","title":{"rendered":"<strong>CVE-2025-30327: Integer Overflow Vulnerability in InCopy Leading to Potential Arbitrary Code Execution<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-30327 is a critical vulnerability that affects InCopy versions 20.2, 19.5.3 and earlier. This security flaw, classified as an integer overflow or wraparound vulnerability, could potentially allow an attacker to execute arbitrary code in the context of the current user. It&#8217;s important to note that the exploitation of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44955-critical-vulnerability-in-ruckus-network-director-allows-jail-users-to-gain-root-access\/\"  data-wpil-monitor-id=\"76072\">vulnerability requires user<\/a> interaction, meaning a victim must open a malicious file. The severity of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7586-critical-tenda-ac500-vulnerability-leading-to-stack-based-buffer-overflow\/\"  data-wpil-monitor-id=\"71106\">vulnerability lies in its potential to compromise systems and lead<\/a> to data leakage, making it a significant concern for users and organizations that rely on the affected InCopy versions.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-30327<br \/>\nSeverity: High (7.8 CVSS Score)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: Required<br \/>\nImpact: Potential system compromise or data leakage, with arbitrary <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50460-remote-code-execution-vulnerability-in-ms-swift-project\/\"  data-wpil-monitor-id=\"71427\">code execution<\/a> in the context of the current user.<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-568286771\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 700px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 20px; font-weight: 600; display: flex; align-items: center;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 8px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 40px; height: 40px;\" \/>\r\n    <\/a>\r\n    A new way to communicate\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 12px;\">\r\n    Ameeba Chat is built on encrypted identity, not personal profiles.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 16px;\">\r\n    Message, call, share files, and coordinate with identities kept separate.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 20px;\">\r\n    <li>\u2022 Encrypted identity<\/li>\r\n    <li>\u2022 Ameeba Chat authenticates access<\/li>\r\n    <li>\u2022 Aliases and categories<\/li>\r\n    <li>\u2022 End-to-end encrypted chat, calls, and files<\/li>\r\n    <li>\u2022 Secure notes for sensitive information<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px;\">\r\n    Private communication, rethought.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Download Ameeba Chat<\/a>\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 500;\">Learn More<\/a>\r\n  <\/div>\r\n<\/div>\r\n<\/div>\n<p>Product | Affected Versions<\/p>\n<p>InCopy | 20.2, 19.5.3 and earlier<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7206-critical-stack-based-buffer-overflow-vulnerability-in-d-link-dir-825-2-10\/\"  data-wpil-monitor-id=\"71108\">vulnerability stems from an integer overflow<\/a> or wraparound within the affected InCopy versions. When a user opens a malicious file, this creates an opportunity for the attacker to trigger the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-30404-integer-overflow-vulnerability-in-executorch-resulting-in-potential-system-compromise\/\"  data-wpil-monitor-id=\"75939\">integer overflow<\/a>. This event can lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-21486-severe-memory-corruption-vulnerability-during-dynamic-process-creation\/\"  data-wpil-monitor-id=\"71513\">memory corruption<\/a> and cause the software to behave unpredictably. In some scenarios, it may allow the attacker to execute arbitrary code within the context of the current user, hence <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8040-memory-safety-bugs-causing-potential-system-compromise-in-firefox-and-thunderbird\/\"  data-wpil-monitor-id=\"71215\">compromising the system or causing potential<\/a> data leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-6160444\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>While the exact details of exploiting this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47107-heap-based-buffer-overflow-vulnerability-in-incopy-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"78331\">vulnerability<\/a> are complex and depend on the specific implementation of InCopy, a theoretical exploit might look something like this:<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;stdio.h&gt;\n#include &lt;stdlib.h&gt;\nvoid vulnerable_function(char *str) {\nint overflow_check = INT_MAX;\noverflow_check += strlen(str);\n\/\/... Additional vulnerable code\n}\nint main(int argc, char **argv) {\nvulnerable_function(argv[1]);\nreturn 0;\n}<\/code><\/pre>\n<p>In this conceptual example, the program is <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7094-critical-stack-based-buffer-overflow-vulnerability-in-belkin-f9k1122-1-00-33\/\"  data-wpil-monitor-id=\"71110\">vulnerable to an integer overflow<\/a> if an attacker can control the input to the `vulnerable_function`.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>To mitigate the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54689-high-risk-php-remote-file-inclusion-vulnerability-in-urna\/\"  data-wpil-monitor-id=\"76651\">risk of this vulnerability<\/a>, affected users of InCopy are recommended to apply the vendor patch once it becomes available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could serve as a temporary mitigation measure. Regularly updating and patching software, as well as educating <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9693-arbitrary-file-deletion-vulnerability-in-user-meta-user-profile-builder-plugin-for-wordpress\/\"  data-wpil-monitor-id=\"90574\">users about the risks of opening untrusted files<\/a>, can also help to prevent the successful exploitation of similar vulnerabilities in the future.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-30327 is a critical vulnerability that affects InCopy versions 20.2, 19.5.3 and earlier. This security flaw, classified as an integer overflow or wraparound vulnerability, could potentially allow an attacker to execute arbitrary code in the context of the current user. It&#8217;s important to note that the exploitation of this vulnerability requires user interaction, meaning [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-63637","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-rce"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/63637","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=63637"}],"version-history":[{"count":11,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/63637\/revisions"}],"predecessor-version":[{"id":83518,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/63637\/revisions\/83518"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=63637"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=63637"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=63637"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=63637"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=63637"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=63637"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=63637"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=63637"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=63637"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}