CVE-2026-2757

CRITICAL
2026-02-24 [email protected]
9.8
CVSS 3.1
Share

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Patch Released
Apr 10, 2026 - 08:30 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Feb 24, 2026 - 14:16 nvd
CRITICAL 9.8

Tags

Mozilla Information Disclosure Firefox Thunderbird Redhat Suse

Description

Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability affects Firefox < 148, Firefox ESR < 115.33, Firefox ESR < 140.8, Thunderbird < 148, and Thunderbird < 140.8.

Analysis

Boundary violation in Firefox WebRTC Audio/Video component before 148 allows remote code execution through crafted WebRTC media streams.

Sign in for full analysis, threat intelligence, and remediation guidance.

Remediation

Within 24 hours: Inventory all Firefox and Thunderbird deployments across the organization and communicate advisory to affected users. Within 7 days: Implement network-level controls to disable WebRTC functionality where possible, block non-essential video conferencing through these applications, and disable auto-update to prevent unvetted patches. …

Sign in for detailed remediation steps.

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

Sign in - Free

Priority Score

49
Low Medium High Critical
KEV: 0
EPSS: +0.1
CVSS: +49
POC: 0

Vendor Status

Share

CVE-2026-2757 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy