Opening an external link to an HTTP website when Firefox iOS was previously closed and had an HTTPS tab open could in some cases result in the padlock icon showing an HTTPS indicator incorrectly This vulnerability affects Firefox for iOS < 131.2.
Conclusion & alert: CVE-2024-10004 is rated Moderate Risk (46.7/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.38%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.32% | 0.38% | +0.05% |
| 2 | 2026-02-18 | 0.42% | 0.32% | -0.10% |
| 3 | 2025-12-20 | — | 0.42% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.1 | 3.1 | CRITICAL |
|
3.9 | 5.2 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-10004: 1 source package rows (firefox); 126 state rows across 3 repos (3.20-community, 3.22-community, edge-community); fixed 0, open 126. | https://security.alpinelinux.org/vuln/CVE-2024-10004 |
debian
|
unimportant | CVE-2024-10004 unimportant priority: Debian including 1 source packages (firefox), 1 status rows across 1 suites (sid): resolved 1. | https://security-tracker.debian.org/tracker/CVE-2024-10004 |
ubuntu
|
medium | CVE-2024-10004 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 10 status rows across 5 suites (focal, jammy, noble, oracular, upstream): not-affected 7, DNE 2, needs-triage 1. | https://ubuntu.com/security/CVE-2024-10004 |
| URL | Tags |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1904885 | Issue Tracking Permissions Required |
| https://www.mozilla.org/security/advisories/mfsa2024-54/ | Vendor Advisory |