{"id":74169,"date":"2025-09-11T13:45:14","date_gmt":"2025-09-11T13:45:14","guid":{"rendered":""},"modified":"2025-10-23T04:01:28","modified_gmt":"2025-10-23T10:01:28","slug":"cve-2025-48534-an-escalation-of-privilege-vulnerability-in-getdefaultcbrpackagename-of-cellbroadcasthandler-java","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-48534-an-escalation-of-privilege-vulnerability-in-getdefaultcbrpackagename-of-cellbroadcasthandler-java\/","title":{"rendered":"CVE-2025-48534: An Escalation of Privilege Vulnerability in getDefaultCBRPackageName of CellBroadcastHandler.java<\/strong>"},"content":{"rendered":"

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

CVE-2025-48534 is a critical cybersecurity vulnerability that has a potential to cause a system compromise or data leakage. This flaw lies in the getDefaultCBRPackageName section of CellBroadcastHandler.java, a component of certain software systems. Any lapse in addressing this vulnerability could lead to an escalation of privilege<\/a> due to a logic error in the code, potentially resulting in a local denial of service. The primary concern here is that an attacker can exploit this vulnerability without any user<\/a> interaction, making it a silent yet potent threat to the integrity of affected systems.<\/p>\n

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

CVE ID: CVE-2025-48534
\nSeverity: High (8.8 CVSS Score)
\nAttack Vector: Local
\nPrivileges Required: System
\nUser Interaction: None
\nImpact: Potential for system<\/a> compromise or data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

CellBroadcastHandler.java | All prior versions<\/a>
\n(Note: Specific product and version details are not available currently, but this vulnerability likely impacts all prior versions<\/a> of software systems that incorporate the getDefaultCBRPackageName of CellBroadcastHandler.java.)<\/p>\n

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

This vulnerability can be exploited by an attacker who has already obtained system level privileges<\/a> on the victim’s machine. The vulnerability lies in a logic error in the code<\/a> of CellBroadcastHandler.java, specifically in the ‘getDefaultCBRPackageName’ function. This error can be exploited to escalate the attacker’s privileges<\/a>, granting them control over the system. This control could be used to cause a denial of service or to access sensitive<\/a> information, potentially leading to data leakage.<\/p>\n

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

The following is a conceptual representation of how the vulnerability might be exploited.<\/p>\n

\/\/ Assume that the attacker has system level access\nSystemPrivileges attacker = new SystemPrivileges();\n\/\/ Exploit the logic error in getDefaultCBRPackageName\nString maliciousCode = \"manipulated logic here\";\nattacker.escalatePrivileges(maliciousCode);\n\/\/ The attacker now has escalated privileges\nSystem.out.println(\"Privileges escalated: \" + attacker.hasEscalatedPrivileges());\n\/\/ The attacker can now cause a denial of service or leak data\nattacker.executeMaliciousActions();<\/code><\/pre>\n
(Note: This is a simplified representation and actual exploitation may involve more complex operations.)
\nThe immediate mitigation recommended is to apply the vendor patch, if available. In its absence, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can serve as temporary mitigation methods. Organizations are strongly advised to update their systems and software<\/a> to the latest versions to minimize the risk of exploitation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview CVE-2025-48534 is a critical cybersecurity vulnerability that has a potential to cause a system compromise or data leakage. This flaw lies in the getDefaultCBRPackageName section of CellBroadcastHandler.java, a component of certain software systems. Any lapse in addressing this vulnerability could lead to an escalation of privilege due to a logic error in the code, […]<\/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":[87],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-74169","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-dos"],"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