{"id":58141,"date":"2025-07-07T18:53:45","date_gmt":"2025-07-07T18:53:45","guid":{"rendered":""},"modified":"2025-09-26T14:05:01","modified_gmt":"2025-09-26T20:05:01","slug":"cve-2025-45006-critical-vulnerability-in-open-source-risc-v-processor","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-45006-critical-vulnerability-in-open-source-risc-v-processor\/","title":{"rendered":"<strong>CVE-2025-45006: Critical Vulnerability in Open-Source RISC-V Processor<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>A critical vulnerability has been discovered in the Open-Source RISC-V Processor that can potentially lead to system compromise and data leakage. This vulnerability, identified as CVE-2025-45006, involves the improper retention of the mstatus.SUM bit in commit f517abb. This violation of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-23098-use-after-free-vulnerability-in-samsung-mobile-processors-enables-privilege-escalation\/\"  data-wpil-monitor-id=\"71084\">privileged spec constraints may enable<\/a> an attacker to access the physical memory of the system, thus leading to a serious security breach. Given the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-32281-high-severity-missing-authorization-vulnerability-in-focuxtheme-wpkit-for-elementor\/\"  data-wpil-monitor-id=\"65294\">severity of this vulnerability<\/a>, it is imperative for system administrators and cybersecurity professionals to understand the depth and breadth of this issue and take necessary steps to mitigate it.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-45006<br \/>\nSeverity: Critical (CVSS score 9.1)<br \/>\nAttack Vector: Physical memory access<br \/>\nPrivileges Required: High<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52717-sql-injection-vulnerability-in-lifterlms-leads-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"65416\">Potential system<\/a> compromise or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3853312993\" 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>Open-Source RISC-V Processor | Commit f517abb<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The exploit takes advantage of the improper retention of the mstatus.SUM bit in the Open-Source RISC-V Processor. Due to this flaw, an attacker can leverage this to violate <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-29975-unauthorized-privilege-escalation-in-microsoft-pc-manager\/\"  data-wpil-monitor-id=\"64917\">privileged spec constraints and gain unauthorized<\/a> access to the physical memory of the system. This can <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6435-firefox-vulnerability-leading-to-potential-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"64799\">potentially lead to a full system compromise and data<\/a> leakage if the attacker manages to exploit this flaw successfully.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-718442598\" 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 an actual exploit code would be highly specific and complex, the general concept would be as follows:<\/p>\n<pre><code class=\"\" data-line=\"\"># Exploit pseudo-code\n# Assuming attacker has gained high privilege access\n# Access the mstatus register\nmstatus = read_register(&#039;mstatus&#039;)\n# Set the SUM bit to non-zero\nmstatus[&#039;SUM&#039;] = 1\n# Write back to the mstatus register\nwrite_register(&#039;mstatus&#039;, mstatus)\n# Now the attacker can potentially access physical memory violating spec constraints.<\/code><\/pre>\n<p>Note: This is a highly simplified example and the actual exploit would be far more complex and specific, depending on the exact architecture and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43192-critical-configuration-issue-in-macos-allowing-potential-system-compromise\/\"  data-wpil-monitor-id=\"80062\">configuration of the target system<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>The recommended mitigation for this vulnerability is to apply the vendor-supplied patch as soon as it becomes available. Until then, as a temporary mitigation, it is suggested to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and block any <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-7457-macos-authorization-model-exploit-leading-to-potential-mitm-attacks\/\"  data-wpil-monitor-id=\"80061\">potential exploit<\/a> attempts. Administrators should also <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-6791-sql-injection-vulnerability-in-centreon-web-monitoring-event-logs-module\/\"  data-wpil-monitor-id=\"84112\">monitor system logs<\/a> for any unusual activity and ensure all systems are running the latest security updates.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview A critical vulnerability has been discovered in the Open-Source RISC-V Processor that can potentially lead to system compromise and data leakage. This vulnerability, identified as CVE-2025-45006, involves the improper retention of the mstatus.SUM bit in commit f517abb. This violation of privileged spec constraints may enable an attacker to access the physical memory of the [&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":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-58141","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/58141","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=58141"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/58141\/revisions"}],"predecessor-version":[{"id":76896,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/58141\/revisions\/76896"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=58141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=58141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=58141"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=58141"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=58141"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=58141"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=58141"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=58141"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=58141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}