{"id":75945,"date":"2025-09-17T07:39:08","date_gmt":"2025-09-17T07:39:08","guid":{"rendered":""},"modified":"2025-10-22T21:48:02","modified_gmt":"2025-10-23T03:48:02","slug":"cve-2025-55049-critical-vulnerability-in-default-cryptographic-key-usage","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-55049-critical-vulnerability-in-default-cryptographic-key-usage\/","title":{"rendered":"<strong>CVE-2025-55049: Critical Vulnerability in Default Cryptographic Key usage<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>The cybersecurity world is currently confronted with a critical vulnerability, CVE-2025-55049. This flaw, which is categorized as a Use of Default Cryptographic Key (CWE-1394), has garnered a CVSS Severity Score of 9.1, signifying its high-risk nature. It essentially affects any <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-25180-underprivileged-software-manipulates-gpu-system-calls-for-unauthorized-access\/\"  data-wpil-monitor-id=\"88756\">system or software<\/a> that hasn&#8217;t modified its default cryptographic key. The <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-50972-sql-injection-vulnerability-in-abantecart-1-4-2-with-a-high-severity-score\/\"  data-wpil-monitor-id=\"83541\">severity of this vulnerability<\/a> lies in its potential to compromise systems or leak sensitive data, thereby posing a significant threat to both individual users and corporate entities.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-55049<br \/>\nSeverity: Critical (9.1 CVSS score)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: None<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-22404-potential-system-compromise-due-to-use-after-free-vulnerability\/\"  data-wpil-monitor-id=\"85665\">System compromise<\/a> or data leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-65017271\" 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>OpenSSL | 1.0.2 &#8211; 1.1.1<br \/>\nMozilla Firefox | 65.0 &#8211; 75.0<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The CVE-2025-55049 vulnerability emerges due to the unmodified usage of <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2022-38692-critical-rsa-key-size-validation-vulnerability-in-bootrom\/\"  data-wpil-monitor-id=\"84494\">default cryptographic keys<\/a>. In essence, an attacker can exploit the vulnerability by intercepting the encrypted communication, decrypt it using the default cryptographic key, and gain <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-7051-unauthorized-access-and-manipulation-of-syslog-configuration-in-n-central\/\"  data-wpil-monitor-id=\"84608\">unauthorized access<\/a> to sensitive data. This flaw can also enable the attacker to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-8067-udisks-daemon-vulnerability-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"85746\">compromise the entire system<\/a>, leading to severe consequences.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-69252512\" 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>Let&#8217;s imagine a scenario where an attacker has intercepted an encrypted communication between a server and a client. The attacker could <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-46733-critical-vulnerability-in-op-tee-resulting-in-potential-system-compromise-and-data-leakage\/\"  data-wpil-monitor-id=\"91286\">potentially decrypt the intercepted data<\/a> using the default cryptographic key, as demonstrated by the following conceptual example:<\/p>\n<pre><code class=\"\" data-line=\"\"># Attacker intercepts encrypted communication\nintercepted_data = intercept_communication(&quot;target.example.com&quot;)\n# Attacker decrypts intercepted data using the default cryptographic key\ndecrypted_data = decrypt_data(intercepted_data, &quot;default_cryptographic_key&quot;)\n# Attacker gains unauthorized access to sensitive data\nprint(decrypted_data)<\/code><\/pre>\n<p><strong>Mitigation Strategies<\/strong><\/p>\n<p>The most effective mitigation strategy for CVE-2025-55049 is to apply the vendor patch. This patch will typically involve changing the default cryptographic key to a unique and strong key, thereby preventing the attacker from being able to decrypt the intercepted data.<br \/>\nIn the absence of a vendor patch, or while waiting for its release, users can employ a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These <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=\"83799\">systems can help identify and block potential<\/a> exploit attempts, thereby providing a layer of protection against this vulnerability.<br \/>\nPlease remember, these are temporary solutions and applying the patch from the vendor is the most reliable way to <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2024-46917-critical-integrity-validation-vulnerability-in-diebold-nixdorf-vynamic-security-suite\/\"  data-wpil-monitor-id=\"86082\">secure against this vulnerability<\/a>.<br \/>\nStay Safe!<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview The cybersecurity world is currently confronted with a critical vulnerability, CVE-2025-55049. This flaw, which is categorized as a Use of Default Cryptographic Key (CWE-1394), has garnered a CVSS Severity Score of 9.1, signifying its high-risk nature. It essentially affects any system or software that hasn&#8217;t modified its default cryptographic key. The severity of this [&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":[99],"product":[100],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-75945","post","type-post","status-publish","format-standard","hentry","category-uncategorized","vendor-openssl","product-openssl-libssl"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75945","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=75945"}],"version-history":[{"count":9,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75945\/revisions"}],"predecessor-version":[{"id":84315,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/75945\/revisions\/84315"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=75945"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=75945"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=75945"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=75945"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=75945"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=75945"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=75945"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=75945"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=75945"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}