{"id":86580,"date":"2026-03-01T09:28:22","date_gmt":"2026-03-01T09:28:22","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-53603-null-pointer-dereference-vulnerability-in-alinto-sope-sogo","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53603-null-pointer-dereference-vulnerability-in-alinto-sope-sogo\/","title":{"rendered":"CVE-2025-53603: Null Pointer Dereference Vulnerability in Alinto SOPE SOGo<\/strong>"},"content":{"rendered":"

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

The vulnerability CVE-2025-53603 affects the Alinto SOPE SOGo version 2.0.2 through 5.12.2. This vulnerability is a result of a NULL pointer dereference, which can cause an unexpected application crash. Attackers can exploit this vulnerability to compromise the system or potentially leak sensitive data.<\/p>\n

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

CVE ID: CVE-2025-53603
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: System compromise or potential data leakage<\/p>\n

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

Product | Affected Versions<\/p>\n

Alinto SOPE SOGo | 2.0.2 through 5.12.2<\/p>\n

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

The vulnerability stems from the application’s mishandling of duplicate parameters in POST requests and the query string. When the application encounters a duplicate parameter, it causes a NULL pointer dereference, leading to a crash. An attacker can exploit this by sending a specially crafted request that includes a duplicate parameter in the query string and the POST body.<\/p>\n

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

While the exact details of the exploit are proprietary, here’s an illustrative example of how a rogue HTTP request might be constructed:<\/p>\n

POST \/vulnerable\/endpoint HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/x-www-form-urlencoded\nparameter1=value1¶meter2=value2¶meter1=value1<\/code><\/pre>\n
In this example, `parameter1` is a duplicate in the POST body, and if included in the query string, it could trigger the vulnerability.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users are strongly recommended to apply the latest vendor patches to their Alinto SOPE SOGo application. As a temporary mitigation, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can help detect and block exploit attempts. However, these measures are not a substitute for patching the vulnerability at the application level.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The vulnerability CVE-2025-53603 affects the Alinto SOPE SOGo version 2.0.2 through 5.12.2. This vulnerability is a result of a NULL pointer dereference, which can cause an unexpected application crash. Attackers can exploit this vulnerability to compromise the system or potentially leak sensitive data. Vulnerability Summary CVE ID: CVE-2025-53603 Severity: High (7.5 CVSS Score) Attack […]<\/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":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86580","post","type-post","status-publish","format-standard","hentry"],"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