CVE-2026-2807
Memory Corruption in Firefox & Thunderbird <148 Enables Code Execution
Publication date: 2026-02-24
Last updated on: 2026-04-13
Assigner: Mozilla Corporation
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| mozilla | firefox | to 148.0 (exc) |
| mozilla | thunderbird | to 148.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-787 | The product writes data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves memory safety bugs found in Firefox 147 and Thunderbird 147. Some of these bugs showed signs of memory corruption, which means that with enough effort, an attacker could potentially exploit them to execute arbitrary code on the affected systems.
How can this vulnerability impact me? :
The impact of this vulnerability could be severe because it may allow an attacker to run arbitrary code on your system. This could lead to unauthorized access, data theft, or other malicious activities depending on what the attacker executes.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know