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firefox

Vendor: Mozilla • 3,473 CVEs

CVEs (3,473)

CVE
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CVSS
1Mozilla
1Firefox
May 6, 2026
Sep 24, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The TCP Socket API implementation in Mozilla Firefox before 41.0 mishandles array boundaries that were established with a navigator.mozTCPSocket.open method call and send method calls, which allows remote TCP servers to...Show more
The TCP Socket API implementation in Mozilla Firefox before 41.0 mishandles array boundaries that were established with a navigator.mozTCPSocket.open method call and send method calls, which allows remote TCP servers to obtain sensitive information from process memory by reading packet data, as demonstrated by availability of this API in a Firefox OS application.Show less
1Mozilla
1Firefox
May 6, 2026
Sep 24, 2015
N/A· v4
N/A· v3
4.3 MEDIUM· v2
js/src/proxy/Proxy.cpp in Mozilla Firefox before 41.0 mishandles certain receiver arguments, which allows remote attackers to bypass intended window access restrictions via a crafted web site.
1Mozilla
1Firefox
May 6, 2026
Sep 24, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 41.0 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code v...Show more
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 41.0 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
1Firefox
May 6, 2026
Sep 24, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to cause a denial of service (memory corruption and application crash) or...Show more
Multiple unspecified vulnerabilities in the browser engine in Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 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
1Firefox
May 6, 2026
Sep 24, 2015
N/A· v4
N/A· v3
4.3 MEDIUM· v2
Mozilla Firefox before 41.0 on Android allows user-assisted remote attackers to spoof address-bar attributes by leveraging lack of navigation after a paste of a URL with a nonstandard scheme, as demonstrated by spoofing...Show more
Mozilla Firefox before 41.0 on Android allows user-assisted remote attackers to spoof address-bar attributes by leveraging lack of navigation after a paste of a URL with a nonstandard scheme, as demonstrated by spoofing an SSL attribute.Show less
1Mozilla
1Firefox
May 6, 2026
Aug 29, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and trig...Show more
The add-on installation feature in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to bypass an intended user-confirmation requirement by constructing a crafted data: URL and triggering navigation to an arbitrary http: or https: URL at a certain early point in the installation process.Show less
1Mozilla
1Firefox
May 6, 2026
Aug 29, 2015
N/A· v4
N/A· v3
10.0 HIGH· v2
Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper int...Show more
Use-after-free vulnerability in the CanvasRenderingContext2D implementation in Mozilla Firefox before 40.0.3 and Firefox ESR 38.x before 38.2.1 allows remote attackers to execute arbitrary code by leveraging improper interaction between resize events and changes to Cascading Style Sheets (CSS) token sequences for a CANVAS element.Show less
2Mozilla
Oracle
2Firefox
Solaris
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
9.3 HIGH· v2
Multiple integer overflows in libstagefright in Mozilla Firefox before 38.0 allow remote attackers to execute arbitrary code via crafted sample metadata in an MPEG-4 video file, a related issue to CVE-2015-1538.
4Canonical
MozillaOpensuse+1 more
4Firefox
OpensuseSolaris+1 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
9.3 HIGH· v2
Heap-based buffer overflow in the stagefright::ESDS::parseESDescriptor function in libstagefright in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code via an i...Show more
Heap-based buffer overflow in the stagefright::ESDS::parseESDescriptor function in libstagefright in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code via an invalid size field in an esds chunk in MPEG-4 video data, a related issue to CVE-2015-1539.Show less
4Canonical
MozillaOpensuse+1 more
4Firefox
OpensuseSolaris+1 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object tha...Show more
Use-after-free vulnerability in the XMLHttpRequest::Open implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 might allow remote attackers to execute arbitrary code via a SharedWorker object that makes recursive calls to the open method of an XMLHttpRequest object.Show less
4Canonical
MozillaOpensuse+1 more
4Firefox
OpensuseSolaris+1 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
4.3 MEDIUM· v2
The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob, data, and filesystem URL schemes during wil...Show more
The nsCSPHostSrc::permits function in dom/security/nsCSPUtils.cpp in Mozilla Firefox before 40.0 does not implement the Content Security Policy Level 2 exceptions for the blob, data, and filesystem URL schemes during wildcard source-expression matching, which might make it easier for remote attackers to conduct cross-site scripting (XSS) attacks by leveraging unexpected policy-enforcement behavior.Show less
4Canonical
MozillaOpensuse+1 more
5Firefox
Firefox OsOpensuse+2 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
The nsTArray_Impl class in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 might allow remote attackers to cause a denial of service (memory corruption) or possibly have unspecified o...Show more
The nsTArray_Impl class in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 might allow remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact by leveraging a self assignment.Show less
4Canonical
MozillaOpensuse+1 more
5Firefox
Firefox OsOpensuse+2 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
Use-after-free vulnerability in the StyleAnimationValue class in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 allows remote attackers to have an unspecified impact by leveraging a...Show more
Use-after-free vulnerability in the StyleAnimationValue class in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 allows remote attackers to have an unspecified impact by leveraging a StyleAnimationValue::operator self assignment.Show less
4Canonical
MozillaOpensuse+1 more
5Firefox
Firefox OsOpensuse+2 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
7.5 HIGH· v2
The nsTSubstring::ReplacePrep function in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 might allow remote attackers to cause a denial of service (memory corruption) or possibly hav...Show more
The nsTSubstring::ReplacePrep function in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 might allow remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, related to an "overflow."Show less
4Canonical
MozillaOpensuse+1 more
4Firefox
OpensuseSolaris+1 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
10.0 HIGH· v2
The decrease_ref_count function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via malformed...Show more
The decrease_ref_count function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read) via malformed WebM video data.Show less
4Canonical
MozillaOpensuse+1 more
4Firefox
OpensuseSolaris+1 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
10.0 HIGH· v2
Heap-based buffer overflow in the resize_context_buffers function in libvpx in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to execute arbitrary code via malformed WebM video data.
4Canonical
MozillaOpensuse+1 more
4Firefox
OpensuseSolaris+1 more
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The js::jit::AssemblerX86Shared::lock_addl function in the JavaScript implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to cause a denial of service (application crash...Show more
The js::jit::AssemblerX86Shared::lock_addl function in the JavaScript implementation in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows remote attackers to cause a denial of service (application crash) by leveraging the use of shared memory and accessing (1) an Atomics object or (2) a SharedArrayBuffer object.Show less
3Mozilla
OpensuseOracle
3Firefox
OpensuseSolaris
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
4.3 MEDIUM· v2
Mozilla Firefox before 40.0 allows man-in-the-middle attackers to bypass a mixed-content protection mechanism via a feed: URL in a POST request.
3Mozilla
OpensuseOracle
3Firefox
OpensuseSolaris
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
4.6 MEDIUM· v2
mar_read.c in the Updater in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows local users to gain privileges or cause a denial of service (out-of-bounds write) via a crafted name of a Mozilla Archive (...Show more
mar_read.c in the Updater in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 allows local users to gain privileges or cause a denial of service (out-of-bounds write) via a crafted name of a Mozilla Archive (aka MAR) file.Show less
3Mozilla
OpensuseOracle
3Firefox
OpensuseSolaris
May 6, 2026
Aug 16, 2015
N/A· v4
N/A· v3
3.3 LOW· v2
Race condition in the Mozilla Maintenance Service in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 on Windows allows local users to write to arbitrary files and consequently gain privileges via vectors inv...Show more
Race condition in the Mozilla Maintenance Service in Mozilla Firefox before 40.0 and Firefox ESR 38.x before 38.2 on Windows allows local users to write to arbitrary files and consequently gain privileges via vectors involving a hard link to a log file during an update.Show less