Integer underflow in the SSLv2 support in Mozilla Network Security Services (NSS) before 3.11.5, as used by Firefox before 1.5.0.10 and 2.x before 2.0.0.2, SeaMonkey before 1.0.8, Thunderbird before 1.5.0.10, and certain Sun Java System server products before 20070611, allows remote attackers to execute arbitrary code via a crafted SSLv2 server message containing a public key that is too short to encrypt the "Master Secret", which results in a heap-based overflow.
Conclusion & alert: CVE-2007-0008 is rated Moderate Risk (53.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.33%). 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 | 17.41% | 4.33% | -13.08% |
| 2 | 2025-10-15 | 16.87% | 17.41% | +0.55% |
| 3 | 2025-08-09 | — | 16.87% | — |
Full EPSS history (20 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2007-0008: 2 GLSA(s) (200703-18, 200703-22), 3 atom(s) (dev-libs/nss, mail-client/mozilla-thunderbird, mail-client/mozilla-thunderbird-bin); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-0008 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2007-0008 |
suse
|
medium | CVE-2007-0008 severity moderate: SUSE including 22 source package names (MozillaFirefox-10.0-0.3.2, MozillaFirefox-140.2.0-160000.1.2, …), 22 product×package rows across 7 product lines (SUSE Linux Enterprise Server 11 SP1, SUSE Linux Enterprise Server 11 SP2, … (7 product lines)): Fixed 22. | https://www.suse.com/security/cve/CVE-2007-0008/ |
ubuntu
|
medium | CVE-2007-0008 medium priority: Ubuntu including 6 source packages (firefox, iceape, lightning-sunbird, midbrowser, mozilla-thunderbird, xulrunner), 30 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): DNE 11, released 11, needs-triage 6, ignored 1, not-affected 1. | https://ubuntu.com/security/CVE-2007-0008 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mozilla | firefox | <= 1.5.0.9 | 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 | 1.4.1 | cpe:2.3:a:mozilla:firefox:1.4.1:*:*:*:*:*:*:* |
| mozilla | firefox | 1.5 | cpe:2.3:a:mozilla:firefox:1.5:*:*:*:*:*:*:* |
| 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 | 1.5.0.10 | 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 | 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 | network_security_services | 3.11.2 | cpe:2.3:a:mozilla:network_security_services:3.11.2:*:*:*:*:*:*:* |
| mozilla | network_security_services | 3.11.3 | cpe:2.3:a:mozilla:network_security_services:3.11.3:*:*:*:*:*:*:* |
| mozilla | network_security_services | 3.11.4 | cpe:2.3:a:mozilla:network_security_services:3.11.4:*:*:*:*:*:*:* |
| mozilla | seamonkey | <= 1.0.7 | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0 | cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.1 | cpe:2.3:a:mozilla:seamonkey:1.0.1:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.2 | cpe:2.3:a:mozilla:seamonkey:1.0.2:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.3 | cpe:2.3:a:mozilla:seamonkey:1.0.3:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.4 | cpe:2.3:a:mozilla:seamonkey:1.0.4:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.5 | cpe:2.3:a:mozilla:seamonkey:1.0.5:*:*:*:*:*:*:* |
| mozilla | seamonkey | 1.0.6 | cpe:2.3:a:mozilla:seamonkey:1.0.6:*:*:*:*:*:*:* |
| mozilla | thunderbird | <= 1.5.0.9 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.1 | cpe:2.3:a:mozilla:thunderbird:0.1:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.2 | cpe:2.3:a:mozilla:thunderbird:0.2:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.3 | cpe:2.3:a:mozilla:thunderbird:0.3:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.4 | cpe:2.3:a:mozilla:thunderbird:0.4:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.5 | cpe:2.3:a:mozilla:thunderbird:0.5:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.6 | cpe:2.3:a:mozilla:thunderbird:0.6:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.7 | cpe:2.3:a:mozilla:thunderbird:0.7:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.7.1 | cpe:2.3:a:mozilla:thunderbird:0.7.1:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.7.2 | cpe:2.3:a:mozilla:thunderbird:0.7.2:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.7.3 | cpe:2.3:a:mozilla:thunderbird:0.7.3:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.8 | cpe:2.3:a:mozilla:thunderbird:0.8:*:*:*:*:*:*:* |
| mozilla | thunderbird | 0.9 | cpe:2.3:a:mozilla:thunderbird:0.9:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0 | cpe:2.3:a:mozilla:thunderbird:1.0:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.1 | cpe:2.3:a:mozilla:thunderbird:1.0.1:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.2 | cpe:2.3:a:mozilla:thunderbird:1.0.2:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.3 | cpe:2.3:a:mozilla:thunderbird:1.0.3:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.4 | cpe:2.3:a:mozilla:thunderbird:1.0.4:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.5 | cpe:2.3:a:mozilla:thunderbird:1.0.5:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.6 | cpe:2.3:a:mozilla:thunderbird:1.0.6:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.7 | cpe:2.3:a:mozilla:thunderbird:1.0.7:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.0.8 | cpe:2.3:a:mozilla:thunderbird:1.0.8:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.5 | cpe:2.3:a:mozilla:thunderbird:1.5:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.5 | cpe:2.3:a:mozilla:thunderbird:1.5:beta2:*:*:*:*:*:* |
| mozilla | thunderbird | 1.5.0.1 | cpe:2.3:a:mozilla:thunderbird:1.5.0.1:*:*:*:*:*:*:* |
| mozilla | thunderbird | 1.5.0.2 | cpe:2.3:a:mozilla:thunderbird:1.5.0.2:*:*:*:*:*:*:* |