{"id":82132,"date":"2025-10-08T00:38:31","date_gmt":"2025-10-08T00:38:31","guid":{"rendered":""},"modified":"2025-10-22T04:38:25","modified_gmt":"2025-10-22T10:38:25","slug":"cve-2025-11152-high-severity-firefox-vulnerability-affecting-versions-prior-to-143-0-3","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-11152-high-severity-firefox-vulnerability-affecting-versions-prior-to-143-0-3\/","title":{"rendered":"CVE-2025-11152: High Severity Firefox Vulnerability Affecting Versions Prior to 143.0.3<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The cybersecurity landscape is full of vulnerabilities that can pose a significant threat to the confidentiality, integrity, and availability of data. One such vulnerability is CVE-2025-11152, which affects the widely-used web browser, Firefox, specifically versions prior to 143.0.3. As a high-severity issue, this vulnerability is particularly concerning because of its potential<\/a> to compromise system security or lead to data leakage. Given Firefox’s vast user base spanning individuals, businesses, and organizations across the globe, understanding and addressing this vulnerability is pivotal to maintaining a safe digital environment.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-11152
\nSeverity: High (8.6 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: System Compromise and Data<\/a> Leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Firefox | Less than 143.0.3<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The exploit takes advantage of certain coding flaws in Firefox versions prior<\/a> to 143.0.3. While the exact nature of the vulnerability is not disclosed for security reasons, it typically involves tricking the user into visiting a malicious website or clicking on a compromised link, which then utilizes the vulnerability to execute unauthorized<\/a> code or operations. This can potentially lead to system compromise or leakage of sensitive data<\/a>.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Below is a conceptual example of how the vulnerability might be exploited. In this case, it involves a malicious script embedded in a webpage that is executed when visited by a vulnerable<\/a> Firefox browser.<\/p>\n

\n\n<script>\n\/\/ ... malicious JavaScript code exploiting CVE-2025-11152 ...\n<\/script>\n\n<\/code><\/pre>\n
Please note<\/a> that this is a simplified representation and actual exploits might be more complex and obfuscated to evade detection.<\/p>\n
Recommendations<\/strong><\/p>\n
To protect your systems from this vulnerability, the best course of action is to apply the vendor patch<\/a>, which in this case involves updating Firefox to version 143.0.3 or later. If for some reason this is not immediately possible, using a Web<\/a> Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems can help detect and prevent malicious traffic associated with the exploit. However, they should not be considered a long-term solution, and updating the affected software should be a priority.
\nRemember, staying vigilant and proactive in maintaining your systems can go a long way in ensuring your digital security.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity landscape is full of vulnerabilities that can pose a significant threat to the confidentiality, integrity, and availability of data. One such vulnerability is CVE-2025-11152, which affects the widely-used web browser, Firefox, specifically versions prior to 143.0.3. As a high-severity issue, this vulnerability is particularly concerning because of its potential to compromise system […]<\/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,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-82132","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t