Mozilla Firefox before 26.0 does not properly remove the Application Installation doorhanger, which makes it easier for remote attackers to spoof a Web App installation site by controlling the timing of page navigation.
Conclusion & alert: CVE-2013-5611 is rated Moderate Risk (51.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.14%). 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 | 1.65% | 2.14% | +0.49% |
| 2 | 2026-06-14 | 1.19% | 1.65% | +0.46% |
| 3 | 2025-11-27 | — | 1.19% | — |
Full EPSS history (11 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2013-5611 |
suse
|
medium | CVE-2013-5611 severity moderate: SUSE including 66 source package names (MozillaFirefox-140.2.0-160000.1.2, MozillaFirefox-24.2.0esr-0.7.1, …), 122 product×package rows across 31 product lines (SUSE Linux Enterprise Desktop 11 SP3, SUSE Linux Enterprise Desktop 12, … (31 product lines)): Fixed 108, Known Not Affected 14. | https://www.suse.com/security/cve/CVE-2013-5611/ |
ubuntu
|
low | CVE-2013-5611 low priority: Ubuntu including 1 source packages (firefox), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): released 5, ignored 1. | https://ubuntu.com/security/CVE-2013-5611 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| oracle | solaris | 11.3 | cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:* |
| fedoraproject | fedora | 19 | cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* |
| fedoraproject | fedora | 20 | cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 12.10 | cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 13.04 | cpe:2.3:o:canonical:ubuntu_linux:13.04:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 13.10 | cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 11 | cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:* |
| suse | linux_enterprise_software_development_kit | 11 | cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp3:*:*:*:*:*:* |
| opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
| opensuse_project | opensuse | 11.4 | cpe:2.3:o:opensuse_project:opensuse:11.4:*:*:*:*:*:*:* |
| opensuse_project | opensuse | 12.3 | cpe:2.3:o:opensuse_project:opensuse:12.3:*:*:*:*:*:*:* |
| mozilla | firefox | <= 25.0.1 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox | 0.1 | cpe:2.3:a:mozilla:firefox:0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 0.2 | cpe:2.3:a:mozilla:firefox:0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 0.3 | cpe:2.3:a:mozilla:firefox:0.3:*:*:*:*:*:*:* |
| mozilla | firefox | 0.4 | cpe:2.3:a:mozilla:firefox:0.4:*:*:*:*:*:*:* |
| mozilla | firefox | 0.5 | cpe:2.3:a:mozilla:firefox:0.5:*:*:*:*:*:*:* |
| mozilla | firefox | 0.6 | cpe:2.3:a:mozilla:firefox:0.6:*:*:*:*:*:*:* |
| mozilla | firefox | 0.6.1 | cpe:2.3:a:mozilla:firefox:0.6.1:*:*:*:*:*:*:* |
| mozilla | firefox | 0.7 | cpe:2.3:a:mozilla:firefox:0.7:*:*:*:*:*:*:* |
| mozilla | firefox | 0.7.1 | cpe:2.3:a:mozilla:firefox:0.7.1:*:*:*:*:*:*:* |
| mozilla | firefox | 0.8 | cpe:2.3:a:mozilla:firefox:0.8:*:*:*:*:*:*:* |
| mozilla | firefox | 0.9 | cpe:2.3:a:mozilla:firefox:0.9:*:*:*:*:*:*:* |
| mozilla | firefox | 0.9 | cpe:2.3:a:mozilla:firefox:0.9:rc:*:*:*:*:*:* |
| mozilla | firefox | 0.9.1 | cpe:2.3:a:mozilla:firefox:0.9.1:*:*:*:*:*:*:* |
| mozilla | firefox | 0.9.2 | cpe:2.3:a:mozilla:firefox:0.9.2:*:*:*:*:*:*:* |
| mozilla | firefox | 0.9.3 | cpe:2.3:a:mozilla:firefox:0.9.3:*:*:*:*:*:*:* |
| mozilla | firefox | 0.10 | cpe:2.3:a:mozilla:firefox:0.10:*:*:*:*:*:*:* |
| mozilla | firefox | 0.10.1 | cpe:2.3:a:mozilla:firefox:0.10.1:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0 | cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0 | cpe:2.3:a:mozilla:firefox:1.0:preview_release:*:*:*:*:*:* |
| mozilla | firefox | 1.0.1 | cpe:2.3:a:mozilla:firefox:1.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.2 | cpe:2.3:a:mozilla:firefox:1.0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.3 | cpe:2.3:a:mozilla:firefox:1.0.3:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.4 | cpe:2.3:a:mozilla:firefox:1.0.4:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.5 | cpe:2.3:a:mozilla:firefox:1.0.5:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.6 | cpe:2.3:a:mozilla:firefox:1.0.6:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.7 | cpe:2.3:a:mozilla:firefox:1.0.7:*:*:*:*:*:*:* |
| mozilla | firefox | 1.0.8 | cpe:2.3:a:mozilla:firefox:1.0.8:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5 | cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5 | cpe:2.3:a:mozilla:firefox:1.5:beta1:*:*:*:*:*:* |
| mozilla | firefox | 1.5 | cpe:2.3:a:mozilla:firefox:1.5:beta2:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.1 | cpe:2.3:a:mozilla:firefox:1.5.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.2 | cpe:2.3:a:mozilla:firefox:1.5.0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.3 | cpe:2.3:a:mozilla:firefox:1.5.0.3:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.4 | cpe:2.3:a:mozilla:firefox:1.5.0.4:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.5 | cpe:2.3:a:mozilla:firefox:1.5.0.5:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.6 | cpe:2.3:a:mozilla:firefox:1.5.0.6:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.7 | cpe:2.3:a:mozilla:firefox:1.5.0.7:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.8 | cpe:2.3:a:mozilla:firefox:1.5.0.8:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.9 | cpe:2.3:a:mozilla:firefox:1.5.0.9:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.10 | cpe:2.3:a:mozilla:firefox:1.5.0.10:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.11 | cpe:2.3:a:mozilla:firefox:1.5.0.11:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.0.12 | cpe:2.3:a:mozilla:firefox:1.5.0.12:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.1 | cpe:2.3:a:mozilla:firefox:1.5.1:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.2 | cpe:2.3:a:mozilla:firefox:1.5.2:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.3 | cpe:2.3:a:mozilla:firefox:1.5.3:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.4 | cpe:2.3:a:mozilla:firefox:1.5.4:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.5 | cpe:2.3:a:mozilla:firefox:1.5.5:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.6 | cpe:2.3:a:mozilla:firefox:1.5.6:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.7 | cpe:2.3:a:mozilla:firefox:1.5.7:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5.8 | cpe:2.3:a:mozilla:firefox:1.5.8:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0 | cpe:2.3:a:mozilla:firefox:2.0:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.1 | cpe:2.3:a:mozilla:firefox:2.0.0.1:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.2 | cpe:2.3:a:mozilla:firefox:2.0.0.2:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.3 | cpe:2.3:a:mozilla:firefox:2.0.0.3:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.4 | cpe:2.3:a:mozilla:firefox:2.0.0.4:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.5 | cpe:2.3:a:mozilla:firefox:2.0.0.5:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.6 | cpe:2.3:a:mozilla:firefox:2.0.0.6:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.7 | cpe:2.3:a:mozilla:firefox:2.0.0.7:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.8 | cpe:2.3:a:mozilla:firefox:2.0.0.8:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.9 | cpe:2.3:a:mozilla:firefox:2.0.0.9:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.10 | cpe:2.3:a:mozilla:firefox:2.0.0.10:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.11 | cpe:2.3:a:mozilla:firefox:2.0.0.11:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.12 | cpe:2.3:a:mozilla:firefox:2.0.0.12:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.13 | cpe:2.3:a:mozilla:firefox:2.0.0.13:*:*:*:*:*:*:* |
| mozilla | firefox | 2.0.0.14 | cpe:2.3:a:mozilla:firefox:2.0.0.14:*:*:*:*:*:*:* |