Race Condition in Firefox Leading to Potential Memory Corruption

CVE-2025-3608

What is CVE-2025-3608?

CVE-2025-3608 is a vulnerability found in Mozilla’s Firefox browser, specifically impacting versions earlier than 137.0.2. This vulnerability arises from a race condition in the nsHttpTransaction component, which could potentially lead to memory corruption. The implications of this flaw could negatively impact organizations by compromising the stability and security of the Firefox browser, which is widely used for its web browsing capabilities. An exploitable condition resulting from this vulnerability poses threats to user data and integrity while navigating online resources.

Technical Details

The vulnerability stems from a race condition that occurs during the processing of HTTP transactions. Such race conditions are typically caused by improper handling of concurrent processes, which can lead to inconsistencies in memory states. In this case, the flaw could allow an attacker to manipulate memory allocation or access non-permitted areas of memory, creating an opportunity for exploitation. The specific technical details elucidate how an unhandled race condition in a widely-used web browser could inadvertently expose users and organizations to significant security risks.

Potential Impact of CVE-2025-3608

1. Memory Corruption Exploitation: The primary risk associated with CVE-2025-3608 is the potential for memory corruption, which can be exploited to execute arbitrary code or crash the browser, leading to denial of service.

2. Data Integrity Risks: Successful exploitation may allow attackers to alter or extract sensitive information from the user's session, compromising data integrity and confidentiality.

3. Broader Attack Surface: The existence of this vulnerability increases the potential attack surface of affected systems. An exploitable flaw in a widely-used application like Firefox can provide attackers with opportunities to deploy additional attacks or spread malware.

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