{"id":"CVE-2026-8090","published":"2026-05-07T12:45:04Z","modified":"2026-07-29T12:04:39Z","title":"Use-after-free in the DOM: Networking component","vendor":"Mozilla","product":"Firefox","tier":"tail","description":{"text":"Use-after-free in the DOM: Networking component. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.","provenance":"source","from":"CVE.org"},"cvss":{"score":7.3,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","provenance":"source","from":"CISA ADP Vulnrichment"},"epss":{"score":0.00317,"percentile":0.24499,"provenance":"source"},"cwes":[{"id":"CWE-416","name":"Use After Free"},{"id":"CWE-825","name":"Expired Pointer Dereference"}],"references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=2034352","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-40/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-41/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-42/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-43/","tags":[]},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-44/","tags":[]},{"url":"https://access.redhat.com/security/cve/CVE-2026-8090","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467709","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8090.json","tags":["x_sadp-csaf-vex"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24983","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24511","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26539","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:19160","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:22325","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:20566","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:22643","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24516","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26270","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:25015","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26536","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24755","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26268","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24509","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26269","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24510","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26174","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:24508","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:26521","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:20574","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:21381","tags":["vendor-advisory","x_refsource_REDHAT"]}],"priority":{"score":10.0,"factors":[{"name":"EPSS percentile","points":4.9},{"name":"CVSS severity","points":5.11}]},"vendorSlug":"mozilla","euvd":{"id":"EUVD-2026-28361","exploited":false,"provenance":"source"},"lineage":{"familyId":"fam-class-mozilla-firefox-cwe-416"}}