VendorsMozillathunderbirdany version
Vulnerabilities

Mozilla Thunderbird any version

Ranked by severity, then by exploit likelihood. Click a CVE ID for its full record.

1742CVEs
CVE-2026-12303
Information disclosure due to incorrect boundary conditions in the Graphics: WebGPU component
Published 2026-06-16 · Analyzed
4.3EPSS 0.002
CVE-2026-0818
CSS-based exfiltration of the content from partially encrypted emails when allowing remote content
Published 2026-01-28 · Modified
4.3EPSS 0.002
CVE-2026-12320
Information disclosure in the Password Manager component
Published 2026-06-16 · Analyzed
4.3EPSS 0.002
CVE-2026-74973
Race condition, use-after-free in the Graphics component
Published 2026-08-18 · Analyzed
4.2EPSS 0.002
CVE-2026-2802
Race condition in the JavaScript: GC component
Published 2026-02-24 · Modified
4.2EPSS 0.002
CVE-2006-4340
Mozilla Network Security Service (NSS) library before 3.11.3, as used in Mozilla Firefox before 1.5.0.7, Thunderbird before 1.5.0.7, and SeaMonkey before 1.0.5, when using an RSA key with exponent 3, does not properly handle extra data in a signature, which allows remote attackers to forge signatures for SSL/TLS and email certificates, a similar vulnerability to CVE-2006-4339. NOTE: on 20061107, Mozilla released an advisory stating that these versions were not completely patched by MFSA2006-60. The newer fixes for 1.5.0.7 are covered by CVE-2006-5462.
Published 2006-09-15 · Modified
4.0EPSS 0.023
CVE-2013-0776
Mozilla Firefox before 19.0, Firefox ESR 17.x before 17.0.3, Thunderbird before 17.0.3, Thunderbird ESR 17.x before 17.0.3, and SeaMonkey before 2.16 allow man-in-the-middle attackers to spoof the address bar by operating a proxy server that provides a 407 HTTP status code accompanied by web script, as demonstrated by a phishing attack on an HTTPS site.
Published 2013-02-19 · Modified
4.0EPSS 0.013
CVE-2025-0240
Compartment mismatch when parsing JavaScript JSON module
Published 2025-01-07 · Modified
4.0EPSS 0.007
CVE-2024-3861
If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
Published 2024-04-16 · Analyzed
4.0EPSS 0.002
CVE-2025-0239
Alt-Svc ALPN validation failure when redirected
Published 2025-01-07 · Modified
4.0EPSS 0.002
CVE-2024-3302
There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
Published 2024-04-16 · Analyzed
3.7EPSS 0.008
CVE-2011-2372
Mozilla Firefox before 3.6.23 and 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 do not prevent the starting of a download in response to the holding of the Enter key, which allows user-assisted remote attackers to bypass intended access restrictions via a crafted web site.
Published 2011-09-29 · Modified
3.5EPSS 0.009
CVE-2023-34414
The error page for sites with invalid TLS certificates was missing the activation-delay Firefox uses to protect prompts and permission dialogs from attacks that exploit human response time delays. If a malicious page elicited user clicks in precise locations immediately before navigating to a site with a certificate error and made the renderer extremely busy at the same time, it could create a gap between when the error page was loaded and when the display actually refreshed. With the right timing the elicited clicks could land in that gap and activate the button that overrides the certificate error for that site. This vulnerability affects Firefox ESR < 102.12, Firefox < 114, and Thunderbird < 102.12.
Published 2023-06-19 · Modified
3.1EPSS 0.009
CVE-2024-2616
To harden ICU against exploitation, the behavior for out-of-memory conditions was changed to crash instead of attempt to continue. This vulnerability affects Firefox ESR < 115.9 and Thunderbird < 115.9.
Published 2024-03-19 · Analyzed
2.7EPSS 0.007
CVE-2006-1740
Mozilla Firefox 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to spoof secure site indicators such as the locked icon by opening the trusted site in a popup window, then changing the location to a malicious site.
Published 2006-04-14 · Modified
2.6EPSS 0.025
CVE-2006-1736
Mozilla Firefox 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 allows remote attackers to trick users into downloading and saving an executable file via an image that is overlaid by a transparent image link that points to the executable, which causes the executable to be saved when the user clicks the "Save image as..." option. NOTE: this attack is made easier due to a GUI truncation issue that prevents the user from seeing the malicious extension when there is extra whitespace in the filename.
Published 2006-04-14 · Modified
2.6EPSS 0.024
CVE-2006-4570
Mozilla Thunderbird before 1.5.0.7 and SeaMonkey before 1.0.5, with "Load Images" enabled, allows remote user-assisted attackers to bypass settings that disable JavaScript via a remote XBL file in a message that is loaded when the user views, forwards, or replies to the original message.
Published 2006-09-15 · Modified
2.6EPSS 0.024
CVE-2006-4567
Mozilla Firefox before 1.5.0.7 and Thunderbird before 1.5.0.7 makes it easy for users to accept self-signed certificates for the auto-update mechanism, which might allow remote user-assisted attackers to use DNS spoofing to trick users into visiting a malicious site and accepting a malicious certificate for the Mozilla update site, which can then be used to install arbitrary code on the next update.
Published 2006-09-15 · Modified
2.6EPSS 0.019
CVE-2006-2786
HTTP response smuggling vulnerability in Mozilla Firefox and Thunderbird before 1.5.0.4, when used with certain proxy servers, allows remote attackers to cause Firefox to interpret certain responses as if they were responses from two different sites via (1) invalid HTTP response headers with spaces between the header name and the colon, which might not be ignored in some cases, or (2) HTTP 1.1 headers through an HTTP 1.0 proxy, which are ignored by the proxy but processed by the client.
Published 2006-06-02 · Modified
2.6EPSS 0.018
CVE-2008-5503
The loadBindingDocument function in Mozilla Firefox 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 does not perform any security checks related to the same-domain policy, which allows remote attackers to read or access data from other domains via crafted XBL bindings.
Published 2008-12-17 · Modified
2.6EPSS 0.015
CVE-2021-29948
Signatures are written to disk before and read during verification, which might be subject to a race condition when a malicious local process or user is replacing the file. This vulnerability affects Thunderbird < 78.10.
Published 2021-06-24 · Modified
2.5EPSS 0.003
CVE-2014-1595
Mozilla Firefox before 34.0, Firefox ESR 31.x before 31.3, and Thunderbird before 31.3 on Apple OS X 10.10 omit a CoreGraphics disable-logging action that is needed by jemalloc-based applications, which allows local users to obtain sensitive information by reading /tmp files, as demonstrated by credential information.
Published 2014-12-11 · Modified
2.1EPSS 0.003
← Prev44 / 44