Vulnerabilidades

Resumen — últimos 7 días

Vulnerabilidades nuevas2614▼ 473 respecto a la semana anterior
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497 resultados, ordenados por fecha de publicación (más recientes primero)

CVEEstadoSeveridadEPSS Explotación activaTecnologías afectadasPublicada ▼Modificada Descripción
En análisisMedia (4.7)0.15%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/20261/10/2026
Site isolation issue in the Panning and Zooming component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
En análisisAlta (8.1)0.19%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/20261/10/2026
Same-origin policy bypass in the WebExtensions component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
En análisisAlta (8.8)0.25%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/202630/9/2026
Privilege escalation in the DLL Services component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
En análisisCrítica (9.6)0.34%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/20261/10/2026
Sandbox escape due to incorrect boundary conditions in the Internationalization component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, and Firefox ESR 140.17.
En análisisAlta (8.8)0.34%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/202630/9/2026
Use-after-free in the XSLT component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
En análisisAlta (8.8)0.34%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/202630/9/2026
Use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
En análisisCrítica (9.6)0.34%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/202630/9/2026
Sandbox escape due to use-after-free in the DOM: Content Processes component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
En análisisAlta (8.1)0.33%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/20261/10/2026
Uninitialized memory in the Storage: Quota Manager component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
En análisisAlta (8.8)0.34%—Mozilla FirefoxAIMozilla Firefox ESRAI29/9/202630/9/2026
Use-after-free in the Widget component. This vulnerability was fixed in Firefox ESR 153.4, Thunderbird 157, Thunderbird 140.17, Thunderbird 153.4, Firefox 157, Firefox ESR 115.42, and Firefox ESR 140.17.
ModificadaMedia (5.3)0.57%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird1/10/202417/6/2026
By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
ModificadaMedia (6.1)0.37%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird1/10/202417/6/2026
A missing delay in directory upload UI could have made it possible for an attacker to trick a user into granting permission via clickjacking. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
ModificadaAlta (7.5)0.52%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird1/10/202417/6/2026
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://devtools` origin. This could allow them to access cross-origin JSON content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access…
ModificadaAlta (7.5)0.40%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird1/10/202417/6/2026
An attacker could, via a specially crafted multipart response, execute arbitrary JavaScript under the `resource://pdf.js` origin. This could allow them to access cross-origin PDF content. This access is limited to "same site" documents by the Site Isolation feature on desktop clients, but full cross-origin access is…
ModificadaCrítica (9.8)0.58%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird3/9/202417/6/2026
Memory safety bugs present in Firefox 129, Firefox ESR 128.1, and Thunderbird 128.1. 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 < 130, Firefox ESR < 128.2, and…
ModificadaMedia (6.1)0.39%—Mozilla FirefoxMozilla Firefox ESR3/9/202417/6/2026
If a site had been granted the permission to open popup windows, it could cause Select elements to appear on top of another site to perform a spoofing attack. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.
ModificadaCrítica (9.8)0.57%—Mozilla FirefoxMozilla Firefox ESR3/9/202417/6/2026
A difference in the handling of StructFields and ArrayTypes in WASM could be used to trigger an exploitable type confusion vulnerability. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Thunderbird < 128.2.
ModificadaCrítica (9.8)0.72%—Mozilla FirefoxMozilla Firefox ESR3/9/202417/6/2026
The JavaScript garbage collector could mis-color cross-compartment objects if OOM conditions were detected at the right point between two passes. This could have led to memory corruption. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.
ModificadaAlta (7.5)0.64%—Mozilla FirefoxMozilla Firefox ESR3/9/202417/6/2026
Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-related schemes news: and snews:. Since most operating systems don't have a trusted newsreader installed by default, an…
ModificadaAlta (8.8)0.60%—Mozilla FirefoxMozilla Firefox ESR3/9/202417/6/2026
Internal browser event interfaces were exposed to web content when privileged EventHandler listener callbacks ran for those events. Web content that tried to use those interfaces would not be able to use them with elevated privileges, but their presence would indicate certain browser features had been used, such as…
ModificadaCrítica (9.8)4.4%—Mozilla FirefoxMozilla Firefox ESR3/9/202417/6/2026
A potentially exploitable type confusion could be triggered when looking up a property name on an object being used as the `with` environment. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, Firefox ESR < 115.15, Thunderbird < 128.2, and Thunderbird < 115.15.
ModificadaMedia (6.5)0.44%—Mozilla FirefoxMozilla Firefox ESR6/8/202417/6/2026
Calling `PK11_Encrypt()` in NSS using CKM_CHACHA20 and the same buffer for input and output can result in plaintext on an Intel Sandy Bridge processor. In Firefox this only affects the QUIC header protection feature when the connection is using the ChaCha20-Poly1305 cipher suite. The most likely outcome is connection…
AnalizadaMedia (6.5)0.53%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird6/8/202417/6/2026
The date picker could partially obscure security prompts. This could be used by a malicious site to trick a user into granting permissions. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
AnalizadaAlta (8.8)0.52%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird6/8/202417/6/2026
Incorrect garbage collection interaction in IndexedDB could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 128.1, and Thunderbird < 128.1.
ModificadaAlta (8.8)0.61%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird6/8/202417/6/2026
Unexpected marking work at the start of sweeping could have led to a use-after-free. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.
ModificadaMedia (6.5)0.58%—Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird6/8/202417/6/2026
ANGLE failed to initialize parameters which lead to reading from uninitialized memory. This could be leveraged to leak sensitive data from memory. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, Firefox ESR < 128.1, Thunderbird < 128.1, and Thunderbird < 115.14.