VDB
CVE-2026-2634
CVE-2026-2634
PUBLISHED
CVSS 9.300000190734863 CRITICAL
Firefox ist ein Open Source Web Browser. Firefox ist ein Open Source Web Browser. ESR ist die Variante mit verlängertem Support. Thunderbird ist ein Open Source E-Mail Client.
EPSS 0.31% · 23.2th percentile
Risk Scores
CVSS 4.0
9.300000190734863
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.31%
23.2th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Amazon | Amazon Linux 2 | |
| SUSE | SUSE Linux | |
| IGEL | IGEL OS | |
| SUSE | SUSE openSUSE | |
| Mozilla | Mozilla Thunderbird <148 | |
| Ubuntu | Ubuntu Linux | |
| Mozilla | Mozilla Firefox ESR <140.8 | |
| Mozilla | Mozilla Firefox <148 | |
| Mozilla | Mozilla Firefox ESR <115.33 | |
| Debian | Debian Linux | |
| Red Hat | Red Hat Enterprise Linux | |
| Mozilla | Mozilla Firefox iOS <147.4 | |
| RESF | RESF Rocky Linux | |
| Mozilla | Mozilla Thunderbird <140.8 | |
| Oracle | Oracle Linux |
Timeline
- Feb 17, 2026 CVE ID Reserved
- Feb 24, 2026 CVE Published
- Feb 25, 2026 EPSS Score
- Feb 27, 2026 EPSS Score
- Feb 28, 2026 EPSS Score
- Mar 2, 2026 EPSS Score
- Mar 3, 2026 EPSS Score
- Mar 5, 2026 EPSS Score
- Mar 6, 2026 EPSS Score
- Mar 8, 2026 EPSS Score
- Mar 9, 2026 EPSS Score
- Mar 11, 2026 EPSS Score
References
- https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0497.json advisory
- https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0497 advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-12/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-13/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-14/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-15/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-16/ advisory
- https://www.mozilla.org/en-US/security/advisories/mfsa2026-17/ advisory
- https://access.redhat.com/errata/RHSA-2026:3339 advisory
- https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/QOYQZDLF7VEL3ZUY46SS34MOSIMJTZ3L/ advisory
- https://lists.debian.org/debian-security-announce/2026/msg00057.html advisory
- https://access.redhat.com/errata/RHSA-2026:3361 advisory
- https://access.redhat.com/errata/RHSA-2026:3338 advisory
- https://lists.debian.org/debian-security-announce/2026/msg00058.html advisory
- http://linux.oracle.com/errata/ELSA-2026-3339.html advisory
- https://errata.build.resf.org/RLSA-2026:3361 advisory
- https://errata.build.resf.org/RLSA-2026:3339 advisory
- https://errata.build.resf.org/RLSA-2026:3338 advisory
- https://linux.oracle.com/errata/ELSA-2026-3361.html advisory
- http://linux.oracle.com/errata/ELSA-2026-3338.html advisory
…and 49 more