CVSS: 10.0EPSS: 0%CPEs: 2EXPL: 0CVE-2026-0892 – Memory safety bugs fixed in Firefox 147 and Thunderbird 147
https://notcve.org/view.php?id=CVE-2026-0892
13 Jan 2026 — Memory safety bugs present in 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 affects Firefox < 147. Memory safety bugs present in 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. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1986912%2C1996718%2C1999633%2C2001081%2C2004443 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 8.1EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0891 – Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
https://notcve.org/view.php?id=CVE-2026-0891
13 Jan 2026 — 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 affects Firefox < 147 and Firefox ESR < 140.7. 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 wi... • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1964722%2C2000981%2C2003100%2C2003278 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0890 – Spoofing issue in the DOM: Copy & Paste and Drag & Drop component
https://notcve.org/view.php?id=CVE-2026-0890
13 Jan 2026 — Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2005081 • CWE-290: Authentication Bypass by Spoofing •
CVSS: 7.8EPSS: 0%CPEs: 2EXPL: 0CVE-2026-0889 – Denial-of-service in the DOM: Service Workers component
https://notcve.org/view.php?id=CVE-2026-0889
13 Jan 2026 — Denial-of-service in the DOM: Service Workers component. This vulnerability affects Firefox < 147. Denial-of-service in the DOM: Service Workers component. This vulnerability affects Firefox < 147 and Thunderbird < 147. These are all security issues fixed in the MozillaFirefox-147.0-1.1 package on the GA media of openSUSE Tumbleweed. • https://bugzilla.mozilla.org/show_bug.cgi?id=1999084 • CWE-400: Uncontrolled Resource Consumption •
CVSS: 5.3EPSS: 0%CPEs: 2EXPL: 0CVE-2026-0888 – Information disclosure in the XML component
https://notcve.org/view.php?id=CVE-2026-0888
13 Jan 2026 — Information disclosure in the XML component. This vulnerability affects Firefox < 147. Information disclosure in the XML component. This vulnerability affects Firefox < 147 and Thunderbird < 147. These are all security issues fixed in the MozillaFirefox-147.0-1.1 package on the GA media of openSUSE Tumbleweed. • https://bugzilla.mozilla.org/show_bug.cgi?id=1985996 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0887 – Clickjacking issue, information disclosure in the PDF Viewer component
https://notcve.org/view.php?id=CVE-2026-0887
13 Jan 2026 — Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing.... • https://bugzilla.mozilla.org/show_bug.cgi?id=2006500 • CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0886 – Incorrect boundary conditions in the Graphics component
https://notcve.org/view.php?id=CVE-2026-0886
13 Jan 2026 — Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, and Firefox ESR < 140.7. Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosu... • https://bugzilla.mozilla.org/show_bug.cgi?id=2005658 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer CWE-501: Trust Boundary Violation •
CVSS: 6.5EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0885 – Use-after-free in the JavaScript: GC component
https://notcve.org/view.php?id=CVE-2026-0885
13 Jan 2026 — Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2003607 • CWE-416: Use After Free •
CVSS: 10.0EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0884 – Use-after-free in the JavaScript Engine component
https://notcve.org/view.php?id=CVE-2026-0884
13 Jan 2026 — Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=2003588 • CWE-416: Use After Free •
CVSS: 5.3EPSS: 0%CPEs: 10EXPL: 0CVE-2026-0883 – Information disclosure in the Networking component
https://notcve.org/view.php?id=CVE-2026-0883
13 Jan 2026 — Information disclosure in the Networking component. This vulnerability affects Firefox < 147 and Firefox ESR < 140.7. Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, sandbox escape, information disclosure or spoofing. • https://bugzilla.mozilla.org/show_bug.cgi?id=1989340 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •