CVE-2026-6764: Vulnerability in Mozilla Firefox
Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-6764 involves incorrect boundary conditions in the DOM: Device Interfaces component of Mozilla Firefox. This type of flaw is related to improper handling of memory boundaries, classified under CWE-119. Such issues can lead to memory corruption, potentially impacting the integrity and availability of the affected software. Mozilla fixed this vulnerability in Firefox 150 and Firefox ESR 140.10, as documented in their security advisories MFSA 2026-30 and MFSA 2026-32. The CVSS v3.1 base score is 6.5, reflecting a medium severity with network attack vector, low attack complexity, no privileges or user interaction required, and impacts on integrity and availability.
Potential Impact
The vulnerability could allow an attacker to cause a loss of integrity and availability in affected Firefox versions prior to 150 and ESR 140.10 by exploiting incorrect boundary conditions in the DOM: Device Interfaces component. There is no evidence of known exploits in the wild. The impact is considered medium severity based on the CVSS score and the nature of the flaw.
Mitigation Recommendations
This vulnerability has been fixed in Firefox 150 and Firefox ESR 140.10. Users and administrators should update to these or later versions to remediate the issue. No additional mitigation actions are required beyond applying the official updates from Mozilla.
CVE-2026-6764: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
CVSS v3.1
Score 6.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-6764 involves incorrect boundary conditions in the DOM: Device Interfaces component of Mozilla Firefox. This type of flaw is related to improper handling of memory boundaries, classified under CWE-119. Such issues can lead to memory corruption, potentially impacting the integrity and availability of the affected software. Mozilla fixed this vulnerability in Firefox 150 and Firefox ESR 140.10, as documented in their security advisories MFSA 2026-30 and MFSA 2026-32. The CVSS v3.1 base score is 6.5, reflecting a medium severity with network attack vector, low attack complexity, no privileges or user interaction required, and impacts on integrity and availability.
Potential Impact
The vulnerability could allow an attacker to cause a loss of integrity and availability in affected Firefox versions prior to 150 and ESR 140.10 by exploiting incorrect boundary conditions in the DOM: Device Interfaces component. There is no evidence of known exploits in the wild. The impact is considered medium severity based on the CVSS score and the nature of the flaw.
Mitigation Recommendations
This vulnerability has been fixed in Firefox 150 and Firefox ESR 140.10. Users and administrators should update to these or later versions to remediate the issue. No additional mitigation actions are required beyond applying the official updates from Mozilla.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-04-21T12:40:57.986Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-30/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-32/","vendor":"Mozilla"}]
Threat ID: 69e7789c19fe3cd2cdd163f3
Added to database: 4/21/2026, 1:16:12 PM
Last enriched: 5/27/2026, 7:59:06 PM
Last updated: 6/5/2026, 12:55:04 PM
Views: 62
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