CVE-2026-3845
Received Received - Intake
Heap Buffer Overflow in Firefox Android Playback Component

Publication date: 2026-03-10

Last updated on: 2026-04-13

Assigner: Mozilla Corporation

Description
Heap buffer overflow in the Audio/Video: Playback component in Firefox for Android. This vulnerability was fixed in Firefox 148.0.2.
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Meta Information
Published
2026-03-10
Last Modified
2026-04-13
Generated
2026-06-16
AI Q&A
2026-03-10
EPSS Evaluated
2026-06-14
NVD
CVE-2026-3845
EUVD
EUVD-2026-10502
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
mozilla firefox to 148.0.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-122 A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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Executive Summary

CVE-2026-3845 is a high-impact security vulnerability found in the Audio/Video Playback component of Firefox for Android versions prior to 148.0.2.

It is a heap buffer overflow, which means that the program writes more data to a buffer located in the heap than it is allocated to hold, potentially corrupting memory.

This overflow can be exploited by an attacker to execute arbitrary code by taking advantage of the memory corruption in the affected component.

Impact Analysis

This vulnerability can have severe impacts as it allows an attacker to execute arbitrary code on the affected device.

Successful exploitation could lead to unauthorized control over the Firefox browser on Android, potentially compromising user data, privacy, and device security.

Because it involves memory corruption, it could also lead to crashes or instability in the browser.

Compliance Impact

I don't know

Detection Guidance

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Mitigation Strategies

To mitigate this vulnerability, you should update Firefox for Android to version 148.0.2 or later, as this version contains the fix for the heap buffer overflow in the Audio/Video Playback component.

Applying this update will also address other high-impact vulnerabilities and improve the overall security and stability of Firefox.

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