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CVE WatchJul 15, 2026

CVE-2026-2757

Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox

CVSS

9.8

Critical

EPSS

0.5%

p39

KEV

—

Exploit Today

12

0-100

Published: Feb 24, 2026 · Last modified: Jul 15, 2026 · CWE-1384

EPSS · 30d

0.5%EPSS · 30 days0.5%

2026-06-302026-07-17

Technical description

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

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-276010.0 CRI

——10Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.3d CVE-2026-27599.8 CRI

——10Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.3d