CVE-2026-6776

low Red Hat
CVSS v3 Base Score
3.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
EPSS Score
0.0%
Exploitation probability in 30 days
Top 97% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
Required
Confidentiality
Low
Integrity
None
Availability
None
Published: April 21, 2026 (80 days ago)
Last Modified: April 21, 2026
Vendor: Red Hat
Fix Available: ✓ Yes
Source: REDHAT

Description

Incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

CWE

CWE-131

Affected Products

Red Hat Enterprise Linux 10Red Hat Enterprise Linux 6Red Hat Enterprise Linux 7Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat Enterprise Linux 8Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat Enterprise Linux 8.6 Telecommunications Update Service

Fix Status

✅ Fix Available

References

🔗 bugzilla.redhat.com 🔗 www.cve.org 🔗 nvd.nist.gov 🔗 www.mozilla.org 🔗 www.mozilla.org