← Back

Firefox

firefox

Vendor: Mozilla • 3,269 CVEs

CVEs (3,269)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 do not properly initialize data for image/vnd.microsoft.icon images, which allows remote attackers to obtain potentially sensitive in...Show more
Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 do not properly initialize data for image/vnd.microsoft.icon images, which allows remote attackers to obtain potentially sensitive information by reading a PNG image that was created through conversion from an ICO image.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
4.3 MEDIUM· v2
Multiple cross-site scripting (XSS) vulnerabilities in Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to inject arbitrary web script or HTML via a (1) web pa...Show more
Multiple cross-site scripting (XSS) vulnerabilities in Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to inject arbitrary web script or HTML via a (1) web page or (2) Firefox extension, related to improper enforcement of XPConnect security restrictions for frame scripts that call untrusted objects.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to bypass the HTML5 frame-navigation policy and replace arbitrary sub-frames by creating a form submission tar...Show more
Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to bypass the HTML5 frame-navigation policy and replace arbitrary sub-frames by creating a form submission target with a sub-frame's name attribute.Show less
5Canonical
DebianMozilla+2 more
9Debian Linux
FirefoxLinux Enterprise Desktop+6 more
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
10.0 HIGH· v2
Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 do not properly initialize nsChildView data structures, which allows remote attackers to cause a...Show more
Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 do not properly initialize nsChildView data structures, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via a crafted Ogg Vorbis file.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
10.0 HIGH· v2
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a denial of service (memory corruption...Show more
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 9.0, Thunderbird 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.Show less
4Debian
MozillaOpensuse+1 more
8Debian Linux
FirefoxLinux Enterprise Desktop+5 more
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
9.3 HIGH· v2
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a d...Show more
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unknown vectors.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain...Show more
Mozilla Firefox before 3.6.26 and 4.x through 6.0, Thunderbird before 3.1.18 and 5.0 through 6.0, and SeaMonkey before 2.4 do not properly enforce the IPv6 literal address syntax, which allows remote attackers to obtain sensitive information by making XMLHttpRequest calls through a proxy and reading the error messages.Show less
3Mozilla
OpensuseSuse
7Firefox
Linux Enterprise DesktopLinux Enterprise Server+4 more
Apr 29, 2026
Feb 1, 2012
N/A· v4
N/A· v3
9.3 HIGH· v2
Use-after-free vulnerability in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 might allow remote attackers to execute arbitrary code via vector...Show more
Use-after-free vulnerability in Mozilla Firefox before 3.6.26 and 4.x through 9.0, Thunderbird before 3.1.18 and 5.0 through 9.0, and SeaMonkey before 2.7 might allow remote attackers to execute arbitrary code via vectors related to incorrect AttributeChildRemoved notifications that affect access to removed nsDOMAttribute child nodes.Show less
1Mozilla
2Firefox
Thunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
6.8 MEDIUM· v2
Mozilla Firefox before 3.6.25 and Thunderbird before 3.1.17 on Mac OS X do not consider .jar files to be executable files, which allows user-assisted remote attackers to bypass intended access restrictions via a crafted...Show more
Mozilla Firefox before 3.6.25 and Thunderbird before 3.1.17 on Mac OS X do not consider .jar files to be executable files, which allows user-assisted remote attackers to bypass intended access restrictions via a crafted file. NOTE: this vulnerability exists because of an incorrect fix for CVE-2011-2372 on Mac OS X.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
7.5 HIGH· v2
Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an Ogg VIDEO el...Show more
Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via an Ogg VIDEO element that is not properly handled after scaling.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
6.8 MEDIUM· v2
Mozilla Firefox before 9.0, Thunderbird before 9.0, and SeaMonkey before 2.6 on Mac OS X do not properly handle certain DOM frame deletions by plugins, which allows remote attackers to cause a denial of service (incorrec...Show more
Mozilla Firefox before 9.0, Thunderbird before 9.0, and SeaMonkey before 2.6 on Mac OS X do not properly handle certain DOM frame deletions by plugins, which allows remote attackers to cause a denial of service (incorrect pointer dereference and application crash) or possibly have unspecified other impact via a crafted web site.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
4.3 MEDIUM· v2
Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to capture keystrokes entered on a web page, even when JavaScript is disabled, by using SVG animation accessKe...Show more
Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to capture keystrokes entered on a web page, even when JavaScript is disabled, by using SVG animation accessKey events within that web page.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
7.5 HIGH· v2
YARR, as used in Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via cra...Show more
YARR, as used in Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted JavaScript.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
10.0 HIGH· v2
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to cause a denial of service (memory corruption...Show more
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via vectors that trigger a compartment mismatch associated with the nsDOMMessageEvent::GetData function, and unknown other vectors.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 21, 2011
N/A· v4
N/A· v3
7.5 HIGH· v2
The SVG implementation in Mozilla Firefox 8.0, Thunderbird 8.0, and SeaMonkey 2.5 does not properly interact with DOMAttrModified event handlers, which allows remote attackers to cause a denial of service (out-of-bounds...Show more
The SVG implementation in Mozilla Firefox 8.0, Thunderbird 8.0, and SeaMonkey 2.5 does not properly interact with DOMAttrModified event handlers, which allows remote attackers to cause a denial of service (out-of-bounds memory access) or possibly have unspecified other impact via vectors involving removal of SVG elements.Show less
1Mozilla
1Firefox
Apr 29, 2026
Dec 7, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Mozilla Firefox 8.0.1 and earlier does not prevent capture of data about the times of Same Origin Policy violations during IFRAME loading attempts, which makes it easier for remote attackers to determine whether a docume...Show more
Mozilla Firefox 8.0.1 and earlier does not prevent capture of data about the times of Same Origin Policy violations during IFRAME loading attempts, which makes it easier for remote attackers to determine whether a document exists in the browser cache via crafted JavaScript code.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 7, 2011
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The layout engine in Mozilla Firefox before 4.0, Thunderbird before 3.3, and SeaMonkey before 2.1 executes different code for visited and unvisited links during the processing of Cascading Style Sheets (CSS) token sequen...Show more
The layout engine in Mozilla Firefox before 4.0, Thunderbird before 3.3, and SeaMonkey before 2.1 executes different code for visited and unvisited links during the processing of Cascading Style Sheets (CSS) token sequences, which makes it easier for remote attackers to obtain sensitive information about visited web pages via a timing attack.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 7, 2011
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The JavaScript implementation in Mozilla Firefox before 4.0, Thunderbird before 3.3, and SeaMonkey before 2.1 does not properly restrict the set of values contained in the object returned by the getComputedStyle method,...Show more
The JavaScript implementation in Mozilla Firefox before 4.0, Thunderbird before 3.3, and SeaMonkey before 2.1 does not properly restrict the set of values contained in the object returned by the getComputedStyle method, which allows remote attackers to obtain sensitive information about visited web pages by calling this method.Show less
1Mozilla
3Firefox
SeamonkeyThunderbird
Apr 29, 2026
Dec 7, 2011
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The Cascading Style Sheets (CSS) implementation in Mozilla Firefox before 4.0, Thunderbird before 3.3, and SeaMonkey before 2.1 does not properly handle the :visited pseudo-class, which allows remote attackers to obtain...Show more
The Cascading Style Sheets (CSS) implementation in Mozilla Firefox before 4.0, Thunderbird before 3.3, and SeaMonkey before 2.1 does not properly handle the :visited pseudo-class, which allows remote attackers to obtain sensitive information about visited web pages via a crafted HTML document, a related issue to CVE-2010-2264.Show less
1Mozilla
2Firefox
Thunderbird
Apr 29, 2026
Nov 9, 2011
N/A· v4
N/A· v3
9.3 HIGH· v2
Mozilla Firefox 4.x through 7.0 and Thunderbird 5.0 through 7.0 perform access control without checking for use of the NoWaiverWrapper wrapper, which allows remote attackers to gain privileges via a crafted web site.