{"id":51201,"date":"2025-06-12T06:31:50","date_gmt":"2025-06-12T06:31:50","guid":{"rendered":""},"modified":"2025-09-07T11:38:26","modified_gmt":"2025-09-07T17:38:26","slug":"cve-2025-1331-ibm-cics-local-user-code-execution-vulnerability","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-1331-ibm-cics-local-user-code-execution-vulnerability\/","title":{"rendered":"<strong>CVE-2025-1331: IBM CICS Local User Code Execution Vulnerability<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity industry has recently identified a significant vulnerability in IBM CICS TX Standard 11.1 and IBM CICS TX Advanced 10.1 and 11.1, which could potentially allow a local user to execute arbitrary code on the system. This vulnerability, known as CVE-2025-1331, occurs due to the unsafe use of the gets function. As <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1329-local-user-arbitrary-code-execution-vulnerability-in-ibm-cics-tx\/\"  data-wpil-monitor-id=\"59374\">IBM&#8217;s CICS<\/a> is widely utilized in various industries ranging from banking to retail, this vulnerability has far-reaching implications and poses a substantial risk to data security and system integrity.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-37093-severe-authentication-bypass-vulnerability-in-hpe-storeonce-software\/\"  data-wpil-monitor-id=\"57955\">severity of this vulnerability<\/a> makes it a matter of paramount concern. With a CVSS Severity Score of 7.8, it poses a significant threat to any systems running the affected versions of IBM CICS, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22041-linux-kernel-vulnerability-in-ksmbd-sessions-deregister-may-lead-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"57956\">potentially enabling system<\/a> compromise or data leakage. Therefore, it is crucial for organizations to understand and address this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-42598-critical-security-vulnerability-in-seiko-epson-printer-drivers-for-windows-os\/\"  data-wpil-monitor-id=\"57612\">vulnerability promptly to ensure their systems&#8217; security<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-1331<br \/>\nSeverity: High (CVSS: 7.8)<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: Required<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-45565-memory-corruption-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"58206\">System compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1273946306\" 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><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-1330-local-user-arbitrary-code-execution-vulnerability-in-ibm-cics-tx\/\"  data-wpil-monitor-id=\"59412\">IBM CICS<\/a> TX Standard | 11.1<br \/>\nIBM CICS TX Advanced | 10.1, 11.1<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability stems from the unsafe use of the gets function in the affected <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-48477-critical-vulnerability-in-freescout-prior-to-version-1-8-180\/\"  data-wpil-monitor-id=\"57957\">IBM CICS<\/a> versions. The gets function is notorious for its lack of bounds checking, which means it does not prevent a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29625-critical-buffer-overflow-vulnerability-in-astrolog-v7-70\/\"  data-wpil-monitor-id=\"57646\">buffer overflow<\/a> when reading input. Consequently, a local user with malicious intent can exploit this flaw to execute arbitrary code on the system, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2021-47668-linux-kernel-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"57613\">potentially leading to system compromise or data<\/a> leakage.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-1270069332\" 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 not indicative of a specific exploit technique, the conceptual example below <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49526-out-of-bounds-write-vulnerability-in-illustrator-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"75254\">illustrates the vulnerability&#8217;s<\/a> general nature. The code snippet demonstrates how a <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22884-buffer-overflow-vulnerability-in-delta-electronics-ispsoft\/\"  data-wpil-monitor-id=\"57763\">buffer overflow<\/a> might occur due to the unsafe use of the gets function.<\/p>\n<pre><code class=\"\" data-line=\"\">#include &lt;stdio.h&gt;\nvoid vulnerable_function() {\nchar buffer[128];\ngets(buffer);  \/\/ Unsafe use of gets function\n}\nint main() {\nvulnerable_function();\nreturn 0;\n}<\/code><\/pre>\n<p>In this example, if the input exceeds 128 bytes, it will <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-48877-high-severity-heap-buffer-overflow-vulnerability-in-xls2csv-utility\/\"  data-wpil-monitor-id=\"58205\">overflow the buffer<\/a>, leading to undefined behavior, which could potentially include the execution of arbitrary code.<\/p>\n<p><strong>Countermeasures and Mitigation<\/strong><\/p>\n<p>IBM has acknowledged the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-44148-critical-xss-vulnerability-in-mailenable-prior-to-version-10\/\"  data-wpil-monitor-id=\"58678\">vulnerability and released patches for the affected CICS versions<\/a>. It is highly recommended that organizations impacted by this issue apply these patches as soon as possible. In situations where immediate patch application is not feasible, temporary mitigation can be achieved using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80015\">potentially block exploit<\/a> attempts. However, these measures should be seen as temporary, and patching the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-5243-critical-security-vulnerability-in-smg-software-information-portal\/\"  data-wpil-monitor-id=\"75255\">software should remain a priority to ensure system security<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity industry has recently identified a significant vulnerability in IBM CICS TX Standard 11.1 and IBM CICS TX Advanced 10.1 and 11.1, which could potentially allow a local user to execute arbitrary code on the system. This vulnerability, known as CVE-2025-1331, occurs due to the unsafe use of the gets function. As IBM&#8217;s [&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":[86],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-51201","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51201","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=51201"}],"version-history":[{"count":10,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51201\/revisions"}],"predecessor-version":[{"id":72439,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/51201\/revisions\/72439"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=51201"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=51201"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=51201"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=51201"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=51201"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=51201"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=51201"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=51201"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=51201"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}