Race condition in libssl in Mozilla Network Security Services (NSS) before 3.15.4, as used in Mozilla Firefox before 27.0, Firefox ESR 24.x before 24.3, Thunderbird before 24.3, SeaMonkey before 2.24, and other products, allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors involving a resumption handshake that triggers incorrect replacement of a session ticket.
Conclusion & alert: CVE-2014-1490 is rated High Risk (70.8/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 3.99%). Core evidence: EPSS rose +2.40% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 1.59% | 3.99% | +2.40% |
| 2 | 2026-02-22 | 1.14% | 1.59% | +0.45% |
| 3 | 2026-01-25 | — | 1.14% | — |
Full EPSS history (14 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.3 | 2.0 | HIGH |
|
8.6 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2014-1490 not yet assigned priority: Debian including 1 source packages (nss), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2014-1490 |
gentoo
|
normal | CVE-2014-1490: 1 GLSA(s) (201504-01), 7 atom(s) (dev-libs/nspr, mail-client/thunderbird, …); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-1490 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2014-1490 |
suse
|
medium | CVE-2014-1490 severity moderate: SUSE including 171 source package names (MozillaFirefox, MozillaFirefox-140.2.0-160000.1.2, …), 277 product×package rows across 59 product lines (SUSE Enterprise Storage 6, SUSE Linux Enterprise Desktop 11 SP3, … (59 product lines)): Fixed 219, Known Not Affected 58. | https://www.suse.com/security/cve/CVE-2014-1490/ |
ubuntu
|
medium | CVE-2014-1490 medium priority: Ubuntu including 3 source packages (firefox, nss, thunderbird), 15 status rows across 5 suites (lucid, precise, quantal, saucy, upstream): released 9, not-affected 4, ignored 2. | https://ubuntu.com/security/CVE-2014-1490 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | < 24.3 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox | < 27.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | network_security_services | < 3.15.4 | cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* |
| mozilla | seamonkey | < 2.24 | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | < 24.3.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | < 12.1.4 | cpe:2.3:a:oracle:enterprise_manager_ops_center:*:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.2.0 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.0:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.2.1 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.2.1:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.3.0 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.0:*:*:*:*:*:*:* |
| oracle | vm_server | 3.2 | cpe:2.3:a:oracle:vm_server:3.2:*:*:*:*:*:x86:* |
| fedoraproject | fedora | 19 | cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:* |
| fedoraproject | fedora | 20 | cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* |
| opensuse | opensuse | 11.4 | cpe:2.3:o:opensuse:opensuse:11.4:*:*:*:*:*:*:* |
| opensuse | opensuse | 12.3 | cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 12.10 | cpe:2.3:o:canonical:ubuntu_linux:12.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 13.10 | cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:* |