1355 matches found
CVE-2026-2790
CVE-2026-2790 is a same-origin policy bypass in the Networking: JAR component affecting Firefox and Thunderbird. Connected sources confirm the issue and its remediation: Firefox versions 148 and ESR 140.8, as well as Thunderbird 148 and 140.8, include the fix. Astra Linux bulletin also cites the ...
CVE-2026-57963
The CVE-2026-57963 issue affects chat UI in Thunderbird where an attacker able to send HTML chat messages (via Matrix or XMPP) can inject arbitrary styled content, phishing links, and CSS that manipulates the chat UI. Underlying risk is manipulation of the chat interface and potential phishing wi...
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-2026-12309
CVE-2026-12309 describes a memory-safety bug in Mozilla Firefox and Thunderbird that was fixed in Firefox 152, Firefox ESR 140.12, Thunderbird 152, and Thunderbird 140.12. The Debian/Ubuntu/Nessus notes corroborate that Firefox ESR was updated to 140.12.x and Firefox to 152.x, indicating remediat...
CVE-2026-12316
CVE-2026-12316 describes a mitigation bypass in the DOM: Security component that was fixed in Mozilla Firefox 152 and Thunderbird 152. The connected documents confirm that this is a software-level patch by Mozilla, addressing a DOM-related security bypass. The vulnerability details in the public ...
CVE-2026-2785
CVE-2026-2785 is an Invalid pointer vulnerability in the Firefox JavaScript Engine. Connected sources show it being addressed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8. Debian/ALMA and Amazon Linux advisories enumerate Firefox-related fixes including this CVE and l...
CVE-2026-2795
CVE-2026-2795 is a use-after-free in the JavaScript: GC component affecting Mozilla Firefox and Mozilla Thunderbird. Technical details across connected sources consistently identify the flaw in the GC object handling, with exploitation risk implied by the high/critical CVSS data. The vulnerabilit...
CVE-2026-2805
CVE-2026-2805 describes an Invalid pointer in the DOM: Core & HTML component affecting Mozilla Firefox and Mozilla Thunderbird. The issue originates from a pointer problem in the DOM Core & HTML, with the vulnerability fixed in version Firefox 148 and Thunderbird 148 . Public CVSS details (CVSS v...
CVE-2026-74945
CVE-2026-74945 is an information disclosure vulnerability in the Graphics: Text component of Mozilla Firefox and Thunderbird. The CVSS 3.1 score is 6.5 (MEDIUM) with a vector of AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, indicating a network-exploitable issue requiring user interaction that results in ...
CVE-2026-74983
CVE-2026-74983 is a mitigation bypass in the Data Loss Prevention component of Mozilla Firefox and Thunderbird. The vulnerability allows an attacker to circumvent the DLP mechanism, potentially enabling unauthorized data exfiltration. The CVSS v3.1 score is 8.1 (HIGH) with a vector of AV:N/AC:L/P...
CVE-2026-8968
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
CVE-2025-11711
The provided connected advisories confirm CVE-2025-11711 affects Firefox and Thunderbird across multiple versions (Firefox < 144, ESR < 140.4, Thunderbird < 144, ESR
CVE-2026-16388
Sandbox escape in the DOM: Networking component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-2759
The CVE-2026-2759 issue is concrete: it concerns incorrect boundary conditions in the Graphics: ImageLib component affecting Firefox/Thunderbird products. The description explicitly states the vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thun...
CVE-2026-4694
CVE-2026-4694: A vulnerability in the Graphics component (incorrect boundary conditions, integer overflow) affecting Firefox and Firefox ESR releases prior to 149/115.34 and 140.9. Patches are available in Firefox 149 and ESR 115.34, ESR 140.9. Other connected advisories reiterate related Firefox...
CVE-2026-4729
CVE-2026-4729 affects Firefox 148 and Thunderbird 148, with memory-safety bugs that could lead to memory corruption and potential arbitrary-code execution. The issues were fixed in Firefox 149 and Thunderbird 149. Mitigation: upgrade to the fixed versions (Firefox 149 / Thunderbird 149). Exploita...
CVE-2026-74969
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
CVE-2026-8972
Privilege escalation in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
CVE-2025-10537
Memory safety bugs present in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142. 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 Fi...
CVE-2025-11708
Use-after-free in MediaTrackGraphImpl::GetInstance(). This vulnerability was fixed in Firefox 144, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
CVE-2026-12305
Memory-safety vulnerability CVE-2026-12305 affecting Mozilla Firefox and Thunderbird, fixed in Firefox 152 (including ESR 140.12) and Thunderbird 152/140.12. Root cause stated as memory safety bug; no exploitation details provided. Remediation: upgrade to Firefox 152 / ESR 140.12 and Thunderbird ...
CVE-2026-16362
CVE-2026-16362 describes a Use-after-free vulnerability in the WebRTC: Audio/Video component of the Firefox and Thunderbird browsers. This flaw could potentially result in the execution of arbitrary code . The vulnerability is addressed in Firefox 153 , Firefox ESR 140.13 , Thunderbird 153 , and ...
CVE-2026-16369
Integer overflow in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13.
CVE-2026-2770
CVE-2026-2770 is a use-after-free in the DOM: Bindings (WebIDL) component. Affected products include Firefox (fixed in Firefox 148 and Firefox ESR 115.33/140.8) and Thunderbird (fixed in 148 and 140.8). The connected advisories confirm the same flaw and fix versions; no exploitation details are p...
CVE-2026-2800
CVE-2026-2800 affects Firefox for Android, specifically a spoofing vulnerability in the WebAuthn component. The issue is described as a spoofing flaw in WebAuthn that affects the Android Firefox and has been fixed in Firefox 148 (and Thunderbird 148). The available connected sources corroborate t...
CVE-2026-2803
CVE-2026-2803 affects Mozilla Firefox and Mozilla Thunderbird. The issue is an information disclosure with mitigation bypass in the Settings UI component, fixed in Firefox 148 and Thunderbird 148. Connected advisories confirm affected products and versions, and note remediation to update to the l...
CVE-2026-4689
CVE-2026-4689: A sandbox-escape issue caused by incorrect boundary conditions and an integer overflow in the XPCOM component. Public disclosures across multiple sources show affected products include Firefox and Thunderbird (various release tracks), with fixes implemented in Firefox 149, ESR 115....
CVE-2026-74953
Firefox's Networking: Cookies component has a privilege escalation flaw. Exploitation requires user interaction (CVSS 8.8 HIGH). Patch available in Firefox 154, ESR 140.14, and ESR 153.1. No in-the-wild exploitation reported; root cause not specified in documents.
CVE-2025-11709
A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability was fixed in Firefox 144, Firefox ESR 115.29, Firefox ESR 140.4, Thunderbird 144, and Thunderbird 140.4.
CVE-2026-12302
CVE-2026-12302 is a mitigation bypass in the DOM: Security component that has been fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12. Multiple advisories and vendor notes confirm the patch exists in these versions. Affected products in the conne...
CVE-2026-16386
Information disclosure due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-2768
CVE-2026-2768 is a vulnerability in the Storage: IndexedDB component that enables a sandbox escape. The issue affects Mozilla Firefox and Thunderbird products (including Firefox/Firefox ESR and Thunderbird releases) and is tied to the IndexedDB storage path. The description provided states that t...
CVE-2026-74959
CVE-2026-74959 is a mitigation bypass in the Storage: Cache API component of Mozilla Firefox and Thunderbird . The CVSS 3.1 score is 9.1 (CRITICAL) with a network attack vector, low complexity, no privileges or user interaction required, and high impact on both confidentiality and integrity. CISA...
CVE-2026-74974
Same-origin policy bypass in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1.
CVE-2026-74977
CVE-2026-74977 is an integer overflow in the Graphics component of Firefox and Thunderbird , rated CVSS 7.5 (High) with a network attack vector requiring no user interaction or privileges, resulting in a high availability impact (denial of service). CISA SSVC assesses no known exploitation , auto...
CVE-2026-8973
Memory safety bugs present in Firefox 150. 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 Firefox 151 and Thunderbird 151.
CVE-2026-0890
Mozilla Firefox , Firefox ESR , and Thunderbird are susceptible to a spoofing issue in the DOM: Copy & Paste and Drag & Drop components (CVE-2026-0890). This vulnerability allows attackers to perform deceptive attacks , which may lead to the theft of confidential data or service interruptions . T...
CVE-2026-12320
CVE-2026-12320 affects the Password Manager component in Firefox and Thunderbird. The vulnerability enables information disclosure and is documented with a CVSS v3.1 base score of 4.3 (Medium) with network attack vector, low attack complexity, no privileges required, but user interaction is requi...
CVE-2026-2786
Technical details for CVE-2026-2786 are not publicly available in the provided documents. Monitor for updates and additional provenance.
CVE-2026-2791
CVE-2026-2791 is a mitigation bypass in the Networking: Cache component. Public sources confirm Firefox and Thunderbird updates fix the issue: Firefox to version 148 (and ESR 140.8), Thunderbird to 148 (and 140.8). The impact is described via CVSS as CRITICAL (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)...
CVE-2026-2798
Use-after-free in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148 and Thunderbird 148.
CVE-2026-74976
CVE-2026-74976 is a JIT miscompilation in the JavaScript Engine: JIT component of Mozilla Firefox and Thunderbird. The vulnerability can lead to high confidentiality impact (information disclosure) with no integrity or availability impact, per the CVSS 3.1 score of 6.5 (MEDIUM) . Attack requires ...
CVE-2026-8966
CVE-2026-8966 is an information disclosure vulnerability affecting the IP Protection component in the Mozilla Firefox web browser and Mozilla Thunderbird email client. The flaw allows a remote attacker to gain access to confidential data due to information leaks. This vulnerability was fixed in F...
CVE-2026-8971
Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 151 and Thunderbird 151.
CVE-2026-16400
Information disclosure in the DOM: Security component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16407
Mitigation bypass in the DOM: Service Workers component. This vulnerability was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-2807
CVE-2026-2807 affects Firefox 147 and Thunderbird 147 with memory-safety bugs that can lead to memory corruption and potential arbitrary code execution; the flaws are fixed in Firefox 148 and Thunderbird 148. Connected sources describe exploitable memory safety issues across components (e.g., DOM...
CVE-2026-74948
CVE-2026-74948 is an information disclosure vulnerability in the Graphics component of Mozilla Firefox and Thunderbird. The CVSS 3.1 base score is 6.5 (MEDIUM) with a vector of AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, meaning a remote attacker with user interaction can achieve high confidentiality im...