https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-01T13:13:50.549171+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2021-38493 CVE-2021-38493 2026-10-01T13:13:50.649810+00:00

Affected: Mozilla Firefox ESR, Mozilla Thunderbird, Mozilla Firefox

Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. 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 ESR < 78.14, Thunderbird < 78.14, and Firefox < 92.

 https://vulnerability.circl.lu/vuln/usn-5074-1 USN-5074-1 — firefox vulnerabilities 2026-10-01T13:13:50.649936+00:00

Affected: Ubuntu:18.04:LTS: firefox, Ubuntu:20.04:LTS: firefox

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, bypass mixed content blocking, or execute arbitrary code.