Overview
The CVE-2025-9184 vulnerability pertains to a series of memory safety bugs found in popular web browser Firefox and email client Thunderbird. This vulnerability has been identified in Firefox ESR 140.1, Thunderbird ESR 140.1, Firefox 141 and Thunderbird 141. These bugs can potentially lead to memory corruption, which, with sufficient effort, could be exploited to execute arbitrary code. The vulnerability is relevant to both individual users and organizations alike that use these software, as it could lead to system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-9184
Severity: High (CVSS: 8.1)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Firefox | < 142 Firefox ESR | < 140.2 Thunderbird | < 142 Thunderbird ESR | < 140.2 How the Exploit Works
The exploit takes advantage of memory safety bugs in the affected software. Some of these bugs have the potential to corrupt memory, which can potentially be used to execute arbitrary code. An attacker, with enough effort, would exploit these bugs to run unwanted code on the victim’s system. This could lead to various outcomes, from causing the system to crash to enabling the attacker to gain unauthorized control over the system.
Conceptual Example Code
An example of how the vulnerability might be exploited is not directly available due to the nature of this vulnerability. However, in theory, it could work something like this:
1. User opens a crafted malicious web page or email in Firefox or Thunderbird.
2. The malicious code exploits the memory safety bugs, causing memory corruption.
3. The corrupted memory is then used to execute arbitrary code.
4. This code could potentially compromise the system or leak data.Please note that this is a conceptual example. The actual exploitation would depend on many factors, including the specifics of the memory safety bugs, the system’s configuration, and the attacker’s skills and goals.
