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CVSS: 8.8EPSS: 0%CPEs: 1EXPL: 0

Memory safety bugs present in Firefox 109. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 110. • https://bugzilla.mozilla.org/buglist.cgi?bug_id=1688592%2C1797186%2C1804998%2C1806521%2C1813284 https://www.mozilla.org/security/advisories/mfsa2023-05 • CWE-787: Out-of-bounds Write •

CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0

When downloading files through the Save As dialog on Windows with suggested filenames containing environment variable names, Windows would have resolved those in the context of the current user. <br>*This bug only affects Firefox on Windows. Other versions of Firefox are unaffected.*. This vulnerability affects Firefox < 111, Firefox ESR < 102.9, and Thunderbird < 102.9. • https://bugzilla.mozilla.org/show_bug.cgi?id=1817768 https://www.mozilla.org/security/advisories/mfsa2023-09 https://www.mozilla.org/security/advisories/mfsa2023-10 https://www.mozilla.org/security/advisories/mfsa2023-11 •

CVSS: 4.3EPSS: 0%CPEs: 2EXPL: 0

The fullscreen notification could have been hidden on Firefox for Android by using download popups, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 111. • https://bugzilla.mozilla.org/show_bug.cgi?id=1783561 https://www.mozilla.org/security/advisories/mfsa2023-09 •

CVSS: 6.5EPSS: 0%CPEs: 3EXPL: 0

When a secure cookie existed in the Firefox cookie jar an insecure cookie for the same domain could have been created, when it should have silently failed. This could have led to a desynchronization in expected results when reading from the secure cookie. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112. • https://bugzilla.mozilla.org/show_bug.cgi?id=1783536 https://www.mozilla.org/security/advisories/mfsa2023-13 •

CVSS: 6.5EPSS: 0%CPEs: 1EXPL: 0

Per origin notification permissions were being stored in a way that didn't take into account what browsing context the permission was granted in. This lead to the possibility of notifications to be displayed during different browsing sessions.<br>*This bug only affects Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 109. • https://bugzilla.mozilla.org/show_bug.cgi?id=1787034 https://www.mozilla.org/security/advisories/mfsa2023-01 •