CVSS: 9.4EPSS: 0%CPEs: 3EXPL: 0CVE-2025-6427
https://notcve.org/view.php?id=CVE-2025-6427
24 Jun 2025 — An attacker was able to bypass the `connect-src` directive of a Content Security Policy by manipulating subdocuments. This would have also hidden the connections from the Network tab in Devtools. This vulnerability affects Firefox < 140. • https://bugzilla.mozilla.org/show_bug.cgi?id=1966927 • CWE-693: Protection Mechanism Failure •
CVSS: 7.5EPSS: 0%CPEs: 15EXPL: 0CVE-2025-6430 – firefox: Content-Disposition header ignored when a file is included in an embed or object tag
https://notcve.org/view.php?id=CVE-2025-6430
24 Jun 2025 — When a file download is specified via the `Content-Disposition` header, that directive would be ignored if the file was included via a `<embed>` or `<object>` tag, potentially making a website vulnerable to a cross-site scripting attack. This vulnerability affects Firefox < 140 and Firefox ESR < 128.12. A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: When a file download is specified via the Content-Disposition header, that directive would b... • https://bugzilla.mozilla.org/show_bug.cgi?id=1971140 • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •
CVSS: 7.8EPSS: 0%CPEs: 15EXPL: 0CVE-2025-6429 – firefox: Incorrect parsing of URLs could have allowed embedding of youtube.com
https://notcve.org/view.php?id=CVE-2025-6429
24 Jun 2025 — Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsing the URL specified in an `embed` tag. This could have bypassed website security checks that restricted which domains users were allowed to embed. This vulnerability affects Firefox < 140 and Firefox ESR < 128.12. A flaw was found in Firefox. The Mozilla Foundation's Security Advisory describes the following issue: Firefox could have incorrectly parsed a URL and rewritten it to the youtube.com domain when parsi... • https://bugzilla.mozilla.org/show_bug.cgi?id=1970658 • CWE-116: Improper Encoding or Escaping of Output CWE-706: Use of Incorrectly-Resolved Name or Reference •
CVSS: 10.0EPSS: 0%CPEs: 14EXPL: 0CVE-2025-6426 – SUSE Security Advisory - SUSE-SU-2025:02122-1
https://notcve.org/view.php?id=CVE-2025-6426
24 Jun 2025 — The executable file warning did not warn users before opening files with the `terminal` extension. *This bug only affects Firefox for macOS. Other versions of Firefox are unaffected.* This vulnerability affects Firefox < 140 and Firefox ESR < 128.12. This update for MozillaFirefox fixes the following issues. Use-after-free in FontFaceSet The WebCompat WebExtension shipped with Firefox exposed a persistent UUID No warning when opening executable terminal files on macOS Incorrect parsing of URLs could have al... • https://bugzilla.mozilla.org/show_bug.cgi?id=1964385 • CWE-345: Insufficient Verification of Data Authenticity •
CVSS: 6.4EPSS: 0%CPEs: 15EXPL: 0CVE-2025-6425 – firefox: The WebCompat WebExtension shipped with Firefox exposed a persistent UUID
https://notcve.org/view.php?id=CVE-2025-6425
24 Jun 2025 — An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, and Firefox ESR < 128.12. An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but ... • https://bugzilla.mozilla.org/show_bug.cgi?id=1717672 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •
CVSS: 10.0EPSS: 0%CPEs: 15EXPL: 0CVE-2025-6424 – firefox: Use-after-free in FontFaceSet
https://notcve.org/view.php?id=CVE-2025-6424
24 Jun 2025 — A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, and Firefox ESR < 128.12. A use-after-free in FontFaceSet resulted in a potentially exploitable crash. This vulnerability affects Firefox < 140, Firefox ESR < 115.25, Firefox ESR < 128.12, Thunderbird < 140, and Thunderbird < 128.12. A flaw was found in Firefox. • https://bugzilla.mozilla.org/show_bug.cgi?id=1966423 • CWE-416: Use After Free •
CVSS: 6.1EPSS: 0%CPEs: 3EXPL: 0CVE-2025-49175 – Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: out-of-bounds read in x rendering extension animated cursors
https://notcve.org/view.php?id=CVE-2025-49175
17 Jun 2025 — A flaw was found in the X Rendering extension's handling of animated cursors. If a client provides no cursors, the server assumes at least one is present, leading to an out-of-bounds read and potential crash. USN-7573-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Nils Emmerich discovered that the X.Org X Server incorrectly handled certain memory operations. • https://access.redhat.com/security/cve/CVE-2025-49175 • CWE-125: Out-of-bounds Read •
CVSS: 7.3EPSS: 0%CPEs: 3EXPL: 0CVE-2025-49176 – Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in big requests extension
https://notcve.org/view.php?id=CVE-2025-49176
17 Jun 2025 — A flaw was found in the Big Requests extension. The request length is multiplied by 4 before checking against the maximum allowed size, potentially causing an integer overflow and bypassing the size check. This update for xorg-x11-server fixes the following issues. Out-of-bounds access in X Rendering extension (Animated cursors). Integer overflow in Big Requests Extension. • https://access.redhat.com/security/cve/CVE-2025-49176 • CWE-190: Integer Overflow or Wraparound •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2025-49178 – Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: unprocessed client request due to bytes to ignore
https://notcve.org/view.php?id=CVE-2025-49178
17 Jun 2025 — A flaw was found in the X server's request handling. Non-zero 'bytes to ignore' in a client's request can cause the server to skip processing another client's request, potentially leading to a denial of service. This update for xorg-x11-server fixes the following issues. Out-of-bounds access in X Rendering extension (Animated cursors). Integer overflow in Big Requests Extension. • https://access.redhat.com/security/cve/CVE-2025-49178 • CWE-667: Improper Locking •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 0CVE-2025-49180 – Xorg-x11-server-xwayland: xorg-x11-server: tigervnc: integer overflow in x resize, rotate and reflect (randr) extension
https://notcve.org/view.php?id=CVE-2025-49180
17 Jun 2025 — A flaw was found in the RandR extension, where the RRChangeProviderProperty function does not properly validate input. This issue leads to an integer overflow when computing the total size to allocate. USN-7573-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. Nils Emmerich discovered that the X.Org X Server incorrectly handled certain memory operations. • https://access.redhat.com/security/cve/CVE-2025-49180 • CWE-190: Integer Overflow or Wraparound •