CVE-2026-6752: Vulnerability in Mozilla Firefox
Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
AI Analysis
Technical Summary
CVE-2026-6752 involves incorrect boundary conditions in the WebRTC component of Mozilla Firefox. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10. The Mozilla advisories classify the impact as high and include this vulnerability among multiple memory safety and boundary condition bugs resolved in these releases. No CVSS score is provided, but the vendor assigns a high impact rating. No known exploitation in the wild has been reported.
Potential Impact
The vulnerability could potentially lead to security issues related to improper handling of boundary conditions in WebRTC, which may affect memory safety and could be leveraged for attacks if exploited. However, no active exploitation has been reported. The impact is rated high by Mozilla, indicating serious security concerns if left unpatched.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10. Users and administrators should update to these versions or later to remediate the issue. Since this is not a cloud service, remediation depends on applying these updates. Patch status is confirmed by the vendor advisories.
CVE-2026-6752: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the WebRTC component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-6752 involves incorrect boundary conditions in the WebRTC component of Mozilla Firefox. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10. The Mozilla advisories classify the impact as high and include this vulnerability among multiple memory safety and boundary condition bugs resolved in these releases. No CVSS score is provided, but the vendor assigns a high impact rating. No known exploitation in the wild has been reported.
Potential Impact
The vulnerability could potentially lead to security issues related to improper handling of boundary conditions in WebRTC, which may affect memory safety and could be leveraged for attacks if exploited. However, no active exploitation has been reported. The impact is rated high by Mozilla, indicating serious security concerns if left unpatched.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 150, Firefox ESR 115.35, and Firefox ESR 140.10. Users and administrators should update to these versions or later to remediate the issue. Since this is not a cloud service, remediation depends on applying these updates. Patch status is confirmed by the vendor advisories.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-04-21T12:40:48.727Z
- 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/mfsa2026-31/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-32/","vendor":"Mozilla"}]
Threat ID: 69e7789819fe3cd2cdd16262
Added to database: 4/21/2026, 1:16:08 PM
Last enriched: 4/21/2026, 1:47:03 PM
Last updated: 4/22/2026, 6:05:24 AM
Views: 8
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