CVE-2026-0890

A spoofing issue exists in the DOM: Copy & Paste and Drag & Drop components of Mozilla Firefox and Mozilla Thunderbird . This vulnerability allows attackers to carry out deceptive attacks by exploiting errors in these specific components. Affected versions include Firefox < 147 , Firefox ESR &...

CVE-2026-0891 Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147

Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in...

CVE-2026-0891 Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147

Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in...

CVE-2026-0890 Spoofing issue in the DOM: Copy & Paste and Drag & Drop component

Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0886

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0886

Mozilla Firefox , Firefox ESR , and Thunderbird are affected by a vulnerability in the Graphics component caused by incorrect boundary conditions . This flaw can lead to memory operations outside of the buffer , potentially allowing a remote attacker to compromise the confidentiality of protected...

CVE-2026-0886 Incorrect boundary conditions in the Graphics component

Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0885

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0883

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0885

Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0884

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0885

Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0885

A use-after-free vulnerability exists in the JavaScript: GC component of the Mozilla Firefox and Thunderbird products. This memory safety issue can allow a remote attacker to execute arbitrary code on the affected system. The vulnerability affects versions of Firefox earlier than 147 and Firefox ...

CVE-2026-0884

A use-after-free vulnerability exists in the JavaScript Engine component of Mozilla Firefox , Firefox ESR , and Thunderbird . An attacker could exploit this flaw to execute arbitrary code on a system or cause service interruptions . The issue was resolved in Firefox 147 , Firefox ESR 140.7 , Thun...

CVE-2026-0883 Information disclosure in the Networking component

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0883 Information disclosure in the Networking component

Information disclosure in the Networking component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0884 Use-after-free in the JavaScript Engine component

Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 147, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0882

Use-after-free in the IPC component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0880

Sandbox escape due to integer overflow in the Graphics component. This vulnerability was fixed in Firefox 147, Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird 147, and Thunderbird 140.7...

CVE-2026-0879

This vulnerability involves a sandbox escape caused by incorrect boundary conditions within the Graphics component of Mozilla products. Impacted software includes Firefox , Firefox ESR , and Thunderbird . Exploitation of this flaw can allow an attacker to execute arbitrary code or cause the appli...