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CVE-2026-2780

Medium priority
Not affected

Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2779

Medium priority
Not affected

Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2778

Medium priority
Not affected

Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2777

Medium priority
Not affected

Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2776

Medium priority
Not affected

Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2775

Medium priority
Not affected

Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2774

Medium priority
Not affected

Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2773

Medium priority
Not affected

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

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2772

Medium priority
Not affected

Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages

CVE-2026-2771

Medium priority
Not affected

Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.

9 affected packages

firefox, thunderbird, mozjs38, mozjs52, mozjs68...

Package 26.04 LTS
firefox Not affected
thunderbird Not affected
mozjs38 Not in release
mozjs52 Not in release
mozjs68 Not in release
mozjs78 Not in release
mozjs91 Not in release
mozjs102 Not in release
mozjs115 Not in release
Show all 9 packages Show less packages