CVE-2026-6781: Vulnerability in Mozilla Firefox
Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
AI Analysis
Technical Summary
CVE-2026-6781 is a denial-of-service vulnerability affecting the Audio/Video: Playback component in Mozilla Firefox. The flaw could allow an attacker to cause a denial-of-service condition. Mozilla fixed this vulnerability in Firefox 150 as part of a security update that addressed multiple memory safety and other security bugs. No detailed technical exploitation methods or CVSS score are provided. The vendor advisory is the authoritative source confirming the fix.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service condition in Firefox's audio/video playback functionality. This could disrupt normal browser operation for affected users. There is no indication of code execution or data disclosure from this vulnerability. No known exploits have been reported in the wild.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 150. Users and administrators should update to Firefox 150 or later to remediate this issue. Since this is a client-side application vulnerability, applying the official update is the recommended and effective mitigation. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-6781: Vulnerability in Mozilla Firefox
Description
Denial-of-service in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 150 and Thunderbird 150.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6781 is a denial-of-service vulnerability affecting the Audio/Video: Playback component in Mozilla Firefox. The flaw could allow an attacker to cause a denial-of-service condition. Mozilla fixed this vulnerability in Firefox 150 as part of a security update that addressed multiple memory safety and other security bugs. No detailed technical exploitation methods or CVSS score are provided. The vendor advisory is the authoritative source confirming the fix.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service condition in Firefox's audio/video playback functionality. This could disrupt normal browser operation for affected users. There is no indication of code execution or data disclosure from this vulnerability. No known exploits have been reported in the wild.
Mitigation Recommendations
Mozilla has fixed this vulnerability in Firefox 150. Users and administrators should update to Firefox 150 or later to remediate this issue. Since this is a client-side application vulnerability, applying the official update is the recommended and effective mitigation. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-04-21T12:41:10.731Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/","vendor":"Mozilla"}]
Threat ID: 69e778a219fe3cd2cdd16621
Added to database: 4/21/2026, 1:16:18 PM
Last enriched: 4/21/2026, 1:31:41 PM
Last updated: 4/22/2026, 7:06:02 AM
Views: 15
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