{"id":59433,"date":"2025-07-17T01:32:27","date_gmt":"2025-07-17T01:32:27","guid":{"rendered":""},"modified":"2025-10-08T02:33:31","modified_gmt":"2025-10-08T08:33:31","slug":"cve-2025-48822-critical-out-of-bounds-read-vulnerability-in-windows-hyper-v","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-48822-critical-out-of-bounds-read-vulnerability-in-windows-hyper-v\/","title":{"rendered":"<strong>CVE-2025-48822: Critical Out-of-Bounds Read Vulnerability in Windows Hyper-V<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>Today we&#8217;re shedding light on a critical vulnerability, CVE-2025-48822, that affects Windows Hyper-V. Windows Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems. This particular <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8029-critical-javascript-execution-vulnerability-in-thunderbird\/\"  data-wpil-monitor-id=\"67438\">vulnerability could result in unauthorized code execution<\/a> and potential system compromise or data leakage. Given the widespread use of Windows Hyper-V in enterprise networks, the impact of this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49267-serious-sql-injection-vulnerability-in-shabti-kaplan-frontend-admin-by-dynamiapps\/\"  data-wpil-monitor-id=\"77169\">vulnerability is serious<\/a>. This vulnerability matters because it could provide an avenue for cybercriminals to infiltrate networks and steal <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-55443-android-telpo-mdm-exposes-sensitive-data-in-plaintext\/\"  data-wpil-monitor-id=\"89326\">sensitive data<\/a>.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-48822<br \/>\nSeverity: Critical, CVSS Score 8.6<br \/>\nAttack Vector: Local<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: Unauthorized <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54444-unrestricted-file-upload-leading-to-code-injection-in-samsung-electronics-magicinfo-9-server\/\"  data-wpil-monitor-id=\"67440\">code execution leading<\/a> to potential system compromise or data leakage.<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1117168842\" 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: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\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: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\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: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8088-path-traversal-vulnerability-in-windows-version-of-winrar\/\"  data-wpil-monitor-id=\"78660\">Windows Hyper-V | All versions<\/a> up to and including the latest release<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47998-severe-heap-based-buffer-overflow-vulnerability-in-windows-routing-and-remote-access-service\/\"  data-wpil-monitor-id=\"67439\">vulnerability stems from an out-of-bounds read in Windows<\/a> Hyper-V. This flaw <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-41666-watchdog-file-replacement-vulnerability-allowing-remote-access-and-control\/\"  data-wpil-monitor-id=\"67441\">allows an attacker to access<\/a> memory segments they shouldn&#8217;t be able to, which can lead to unauthorized execution of code. In essence, the attacker manipulates a data buffer in a way that exceeds its boundary, <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7027-critical-firmware-vulnerability-enabling-arbitrary-memory-writes-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"70147\">leading to the reading of adjacent memory<\/a> spaces. This can lead to leakage of sensitive information, system instability, or even execution of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25214-race-condition-vulnerability-in-wwbn-avideo-14-4-leading-to-arbitrary-code-execution\/\"  data-wpil-monitor-id=\"67730\">arbitrary code<\/a> if the attacker can control the out-of-bounds data.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-3452489783\" 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>This is a conceptual example of how the exploit might occur. In this case, the attacker sends a specially crafted request to the system, triggering the out-of-bounds read and leading to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49688-double-free-vulnerability-in-windows-rras-opens-door-for-unauthorized-code-execution\/\"  data-wpil-monitor-id=\"67729\">unauthorized code<\/a> execution.<\/p>\n<pre><code class=\"\" data-line=\"\"># Hypothetical command to trigger out-of-bounds read\n$ echo &#039;{ &quot;buffer_size&quot;: 1000000000 }&#039; &gt; payload.txt\n# Send payload to target system\n$ nc target_system 1234 &lt; payload.txt<\/code><\/pre>\n<p>Please note that this is a simplified representation and actual exploitation would likely be more complex and tailored to the specific <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-43192-critical-configuration-issue-in-macos-allowing-potential-system-compromise\/\"  data-wpil-monitor-id=\"76383\">system configuration<\/a>.<\/p>\n<p><strong>Mitigation<\/strong><\/p>\n<p>To mitigate this vulnerability, users are advised to apply the vendor&#8217;s patch as soon as it is available. In the interim, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure to detect and <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8059-critical-privilege-escalation-vulnerability-in-b-blocks-wordpress-plugin\/\"  data-wpil-monitor-id=\"76382\">block attempts to exploit this vulnerability<\/a>. Implementing these measures can help to protect your systems from unauthorized <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50060-critical-data-access-vulnerability-in-oracle-bi-publisher\/\"  data-wpil-monitor-id=\"70146\">access and potential data<\/a> leakage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview Today we&#8217;re shedding light on a critical vulnerability, CVE-2025-48822, that affects Windows Hyper-V. Windows Hyper-V is a native hypervisor; it can create virtual machines on x86-64 systems. This particular vulnerability could result in unauthorized code execution and potential system compromise or data leakage. Given the widespread use of Windows Hyper-V in enterprise networks, 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":[82],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-59433","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-microsoft"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59433","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=59433"}],"version-history":[{"count":7,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59433\/revisions"}],"predecessor-version":[{"id":82162,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/59433\/revisions\/82162"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=59433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=59433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=59433"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=59433"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=59433"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=59433"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=59433"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=59433"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=59433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}