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Mozilla — Vulnerabilities & Security Advisories 2268

Browse all 2268 CVE security advisories affecting Mozilla. AI-powered Chinese analysis, POCs, and references for each vulnerability.

Mozilla operates as a non-profit organization primarily known for developing the Firefox web browser and maintaining the Gecko rendering engine. Its software portfolio serves millions of users globally, focusing on open-source web technologies and privacy-centric browsing solutions. Historically, the codebase has been susceptible to a wide array of vulnerabilities, including remote code execution, cross-site scripting, and memory corruption issues such as buffer overflows. These flaws often stem from complex JavaScript engines and network stack implementations. While Mozilla maintains a robust security response team and regularly issues patches, the sheer volume of recorded Common Vulnerabilities and Exposures highlights the challenges inherent in maintaining large-scale, cross-platform applications. The organization continues to prioritize security audits and community-driven bug bounty programs to mitigate risks associated with its extensive feature set and widespread adoption.

CVE ID Title CVSS Severity Published
CVE-2025-6434 HTTPS-Only exception screen lacked anti-clickjacking delay — Firefox 4.3AI Medium AI 2025-06-24
CVE-2025-6432 DNS Requests leaked outside of a configured SOCKS proxy — Firefox 7.4AI High AI 2025-06-24
CVE-2025-6431 The prompt in Firefox for Android that asks before opening a link in an external application could be bypassed — Firefox 6.5AI Medium AI 2025-06-24
CVE-2025-6428 Firefox for Android opened URLs specified in a link querystring parameter — Firefox 6.1AI Medium AI 2025-06-24
CVE-2025-6426 No warning when opening executable terminal files on macOS — Firefox 8.8 - 2025-06-24
CVE-2025-6427 connect-src Content Security Policy restriction could be bypassed — Firefox 7.5AI High AI 2025-06-24
CVE-2025-6430 Content-Disposition header ignored when a file is included in an embed or object tag — Firefox 6.1 - 2025-06-24
CVE-2025-6429 Incorrect parsing of URLs could have allowed embedding of youtube.com — Firefox 4.3 - 2025-06-24
CVE-2025-6425 The WebCompat WebExtension shipped with Firefox exposed a persistent UUID — Firefox 7.5 - 2025-06-24
CVE-2025-6424 Use-after-free in FontFaceSet — Firefox 9.8 - 2025-06-24
CVE-2025-49709 Memory corruption in canvas surfaces — Firefox 8.1AI High AI 2025-06-11
CVE-2025-49710 Integer overflow in OrderedHashTable — Firefox 8.8AI High AI 2025-06-11
CVE-2025-5986 Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links — Thunderbird 6.5AI Medium AI 2025-06-11
CVE-2025-5687 Local privilege escalation vulnerability in Mozilla VPN clients for macOS v2.27.0 and below. — Mozilla VPN 2.28.0 7.8AI High AI 2025-06-11
CVE-2025-5272 Memory safety bugs fixed in Firefox 139 and Thunderbird 139 — Firefox 9.8AI Critical AI 2025-05-27
CVE-2025-5271 Devtools' preview ignored CSP headers — Firefox 4.3AI Medium AI 2025-05-27
CVE-2025-5270 SNI was sometimes unencrypted — Firefox 7.5AI High AI 2025-05-27
CVE-2025-5269 Memory safety bug fixed in Firefox ESR 128.11 and Thunderbird 128.11 — Firefox 8.8AI High AI 2025-05-27
CVE-2025-5268 Memory safety bugs fixed in Firefox 139, Thunderbird 139, Firefox ESR 128.11, and Thunderbird 128.11 — Firefox 9.8AI Critical AI 2025-05-27
CVE-2025-5267 Clickjacking vulnerability could have led to leaking saved payment card details — Firefox 4.3AI Medium AI 2025-05-27
CVE-2025-5266 Script element events leaked cross-origin resource status — Firefox 6.5AI Medium AI 2025-05-27
CVE-2025-5265 Potential local code execution in “Copy as cURL” command — Firefox 7.8AI High AI 2025-05-27
CVE-2025-5264 Potential local code execution in “Copy as cURL” command — Firefox 7.8AI High AI 2025-05-27
CVE-2025-5263 Error handling for script execution was incorrectly isolated from web content — Firefox 6.5AI Medium AI 2025-05-27
CVE-2025-5262 Mozilla Thunderbird 安全漏洞 — Thunderbird 9.8 - 2025-05-27
CVE-2025-5020 Links using non-HTTP schemes opened from other apps such as Safari could have allowed spoofing of website addresses — Firefox for iOS 6.5AI Medium AI 2025-05-21
CVE-2025-4919 Out-of-bounds access when optimizing linear sums — Firefox 8.8AI High AI 2025-05-17
CVE-2025-4918 Out-of-bounds access when resolving Promise objects — Firefox 8.1AI High AI 2025-05-17
CVE-2025-3932 Tracking Links in Attachments Bypassed Remote Content Blocking — Thunderbird 4.3AI Medium AI 2025-05-14
CVE-2025-3909 JavaScript Execution via Spoofed PDF Attachment and file:/// Link — Thunderbird 6.1AI Medium AI 2025-05-14

This page lists every published CVE security advisory associated with Mozilla. Each entry links to a detailed page with CVSS scoring, CWE classification, affected products and references. AI-generated Chinese analysis is provided for fast triage.