CVE-2026-6752 Details
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.
A vulnerability has been identified in the WebRTC component of Mozilla Firefox and Firefox ESR, related to incorrect boundary conditions. This issue could potentially be exploited, although the specific exploitation details are not provided. The vulnerability affects multiple versions of Firefox and Firefox ESR, with the exception of the versions in which it has been fixed.
Users can upgrade to Firefox 150, Firefox ESR 115.35, or Firefox ESR 140.10 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 21, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-119 | Improper Restriction of Operations within the Bounds of a Memory Buffer | CISA-ADP |
| CWE-131 | Incorrect Calculation of Buffer Size | redhat-SADP |
Affected Products
| Product | Versions |
|---|---|
| mozilla firefox | < 115.35.0 < 150.0 >= 140.0, < 140.10.0 |
CPE
Remediation
| |
| mozilla thunderbird | >= 140.0, < 140.10.0 |
CPE
Remediation
| |
Change History
8 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 22, 2026 | Initial Analysis | [email protected] |
| Apr 22, 2026 | CVE Modified | [email protected] |
| Apr 21, 2026 | CVE Modified | CISA-ADP |
| Apr 21, 2026 | New CVE Received | [email protected] |