Overview
The CVE-2025-22404 is a severe vulnerability identified in the avct_lcb_msg_ind of avct_lcb_act.cc. This specific vulnerability allows the potential execution of arbitrary code due to use after free, which could lead to a local escalation of privilege without any additional execution privileges needed. This vulnerability’s impact is significant, as it could potentially result in a system compromise or data leakage. It is crucial to address this vulnerability promptly, since user interaction is not required for its exploitation.
Vulnerability Summary
CVE ID: CVE-2025-22404
Severity: High (8.4 CVSS Score)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
avct_lcb_act.cc | All versions before the patch
How the Exploit Works
The vulnerability stems from the misuse of the avct_lcb_msg_ind process in avct_lcb_act.cc. Specifically, after an object is freed, the process continues to use it, which leads to a use after free condition. This condition can potentially allow an attacker to execute arbitrary code or escalate their privileges locally. Since there is no requirement for additional execution privileges or user interaction, this vulnerability can be exploited silently and unnoticed.
Conceptual Example Code
Here’s an example of how the vulnerability might be exploited:
// allocate memory for object
object_t *obj = malloc(sizeof(object_t));
// use the object
use(obj);
// free the object
free(obj);
// continue to use the object (use after free)
use(obj); // this is where the vulnerability occursIn the above example, the object is used after it has been freed, which leads to undefined behavior and potential security risks. The exact exploitation method will depend on the specific use of the freed object and the control an attacker has over the input that is used.
Mitigation Guidance
To mitigate this vulnerability, users are recommended to apply the vendor patch as soon as it becomes available. If this is not possible, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. These tools can help identify and block attempts to exploit this vulnerability, reducing the risk of system compromise or data leakage.
