VDB
RHSA-2025%3A21055
RHSA-2025%3A21055
PUBLISHED
CVSS 7.5 HIGH
An update for firefox is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | ||
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | ||
| firefox |
Timeline
- Nov 12, 2025 CVE Published
- May 1, 2026 Distribution Patch
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 1, 2026 Security Advisory
- May 19, 2026 Distribution Patch
- May 19, 2026 Security Advisory
- May 19, 2026 Security Advisory
- May 19, 2026 Security Advisory
- May 19, 2026 Security Advisory
- Jun 30, 2026 CVE Updated
References
- https://access.redhat.com/errata/RHSA-2025:21055 fix
- https://access.redhat.com/security/updates/classification/#important url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403763 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403765 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403768 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403769 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403770 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403774 url
- https://bugzilla.redhat.com/show_bug.cgi?id=2403776 url
- https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_21055.json advisory