CVEs published in October 2026
17,265 vulnerabilities, 1,627 critical, 21 exploited.
- mozilla firefox, thunderbird +1 moreUninitialized memory in the Networking component8.1 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreIncorrect boundary conditions in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the SVG component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the XML component6.3 Medium
- mozilla firefox, thunderbird +1 moreIncorrect boundary conditions in the JavaScript Engine component9.8 Critical
- mozilla firefox, thunderbird +1 moreIncorrect boundary conditions in the XML component9.8 Critical
- mozilla firefox, thunderbird +1 moreUse-after-free in the Layout component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreIncorrect boundary conditions in the JavaScript Engine: JIT component7.3 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: CSS Object Model component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the XML component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Layout component6.3 Medium
- mozilla firefox, thunderbird +1 moreInvalid pointer in the JavaScript Engine component7.3 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Bindings (WebIDL) component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Layout component6.3 Medium
- mozilla firefox, thunderbird +1 moreFrame poisoning in the CSS Parsing and Computation component5.4 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Events component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Bindings (WebIDL) component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreSame-origin policy bypass in the CSS Parsing and Computation component8.1 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the SVG component6.3 Medium
- mozilla firefox, thunderbird +1 moreIncorrect boundary conditions in the SVG component8.1 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the XSLT component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Audio/Video component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Networking: WebSockets component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the CSS Parsing and Computation component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: HTML Parser component9.6 Critical
- mozilla firefox, thunderbird +1 moreUse-after-free in the DOM: Core & HTML component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the Graphics: Canvas2D component8.8 High
- mozilla firefox, thunderbird +1 moreInvalid pointer in the Graphics: WebRender component9.8 Critical
- mozilla firefox, thunderbird +1 moreUse-after-free in the XSLT component6.3 Medium
- mozilla firefox, thunderbird +1 moreIncorrect boundary conditions in the Layout: Block and Inline component7.3 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the SVG component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the SVG component6.3 Medium
- mozilla firefox, thunderbird +1 moreSame-origin policy bypass in the CSS Parsing and Computation component8.1 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the Audio/Video: Playback component6.3 Medium
- mozilla firefox, thunderbird +1 moreInvalid pointer in the JavaScript Engine component7.3 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the JavaScript: GC component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Graphics: ImageLib component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Networking component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the CSS Parsing and Computation component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the Audio/Video: Playback component6.3 Medium
- mozilla firefox, thunderbird +1 moreUse-after-free in the JavaScript: GC component8.8 High
- mozilla firefox, thunderbird +1 moreUse-after-free in the Audio/Video component6.3 Medium
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