CVE-2026-4717

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4726 Denial-of-service in the XML component

Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149...

CVE-2026-4726

CVE-2026-4726 is a denial-of-service vulnerability in the XML component of Mozilla’s Firefox and Thunderbird. The root cause is an error in the XML parser that can be triggered remotely to exhaust resources. Affected products: Firefox and Thunderbird before version 149. Impact: Denial of service ...

CVE-2026-4726 Denial-of-service in the XML component

Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149...

CVE-2026-4716 Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component

Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4716 Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component

Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4714

CVE-2026-4714 is an Audio/Video boundary-condition vulnerability present in Mozilla Firefox/Thunderbird stack. The initial entry states impact as high (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H, CVSS 3.1 base 7.5) with exploitation not described in the sources. Connected advisories confirm the issue af...

CVE-2026-4715

CVE-2026-4715 involves uninitialized memory in the Graphics: Canvas2D component. Affected products are Mozilla Firefox versions earlier than 149 and Firefox ESR earlier than 140.9. The connected records (NVD and CVE/CVE List entries) confirm the vulnerability and its scope but do not provide deta...

CVE-2026-4714 Incorrect boundary conditions in the Audio/Video component

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4715 Uninitialized memory in the Graphics: Canvas2D component

Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4714

Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4712 Information disclosure in the Widget: Cocoa component

Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4713

CVE-2026-4713 is a Firefox graphics vulnerability: incorrect boundary conditions in the Graphics component. Affected: Firefox versions before 149 and ESR before 140.9. Mitigation: update to Firefox 149 or ESR 140.9 (patched). Details on exploitability or broader impact are not provided in the sup...

CVE-2026-4713

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4711

Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4725 Sandbox escape due to use-after-free in the Graphics: Canvas2D component

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149 and Thunderbird 149...

CVE-2026-4711

CVE-2026-4711 describes a use-after-free in the Cocoa-based Widget component affecting Mozilla Firefox before 149 and Firefox ESR before 140.9. The available sources consistently state the vulnerability type and affected versions but do not provide payload details, implicated files, root cause be...

CVE-2026-4711 Use-after-free in the Widget: Cocoa component

Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...

CVE-2026-4725 Sandbox escape due to use-after-free in the Graphics: Canvas2D component

Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149 and Thunderbird 149...

CVE-2026-4711 Use-after-free in the Widget: Cocoa component

Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9...