CVE-2011-3663

Mozilla Firefox 4.x through 8.0, Thunderbird 5.0 through 8.0, and SeaMonkey before 2.6 allow remote attackers to capture keystrokes entered on a web page, even when JavaScript is disabled, by using SVG animation accessKey events within that web page.

Published: 2011-12-20 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-3663 is rated Moderate Risk (45.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.07%). EPSS rose +1.10% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-3663

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 0.96% 2.07% +1.10%
2 2025-03-30 2.92% 0.96% -1.96%
3 2025-03-29 — 2.92% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-3663

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2011-3663

OS Trackers for CVE-2011-3663

vendor priority summary link
gentoo high CVE-2011-3663: 1 GLSA(s) (201301-01), 14 atom(s) (dev-libs/nss, mail-client/mozilla-thunderbird, …); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-3663
redhat critical — https://access.redhat.com/security/cve/CVE-2011-3663
suse medium CVE-2011-3663 severity moderate: SUSE including 66 source package names (MozillaFirefox-10.0-0.3.2, MozillaFirefox-140.2.0-160000.1.2, …), 82 product×package rows across 30 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (30 product lines)): Fixed 82. https://www.suse.com/security/cve/CVE-2011-3663/
ubuntu medium CVE-2011-3663 medium priority: Ubuntu including 5 source packages (firefox, seamonkey, thunderbird, xulrunner-1.9.2, xulrunner-2.0), 50 status rows across 10 suites (hardy, lucid, maverick, natty, oneiric, precise, quantal, raring, saucy, upstream): DNE 17, ignored 14, not-affected 8, released 7, needs-triage 4. https://ubuntu.com/security/CVE-2011-3663

Affected software / configurations for CVE-2011-3663

Vendor Product Version Raw CPE
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:*:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta1:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta10:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta11:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta12:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta2:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta3:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta4:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta5:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta6:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta7:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta8:*:*:*:*:*:*
mozilla firefox 4.0 cpe:2.3:a:mozilla:firefox:4.0:beta9:*:*:*:*:*:*
mozilla firefox 4.0.1 cpe:2.3:a:mozilla:firefox:4.0.1:*:*:*:*:*:*:*
mozilla firefox 5.0 cpe:2.3:a:mozilla:firefox:5.0:*:*:*:*:*:*:*
mozilla firefox 5.0.1 cpe:2.3:a:mozilla:firefox:5.0.1:*:*:*:*:*:*:*
mozilla firefox 6.0 cpe:2.3:a:mozilla:firefox:6.0:*:*:*:*:*:*:*
mozilla firefox 6.0.1 cpe:2.3:a:mozilla:firefox:6.0.1:*:*:*:*:*:*:*
mozilla firefox 6.0.2 cpe:2.3:a:mozilla:firefox:6.0.2:*:*:*:*:*:*:*
mozilla firefox 7.0 cpe:2.3:a:mozilla:firefox:7.0:*:*:*:*:*:*:*
mozilla firefox 7.0.1 cpe:2.3:a:mozilla:firefox:7.0.1:*:*:*:*:*:*:*
mozilla thunderbird 5.0 cpe:2.3:a:mozilla:thunderbird:5.0:*:*:*:*:*:*:*
mozilla thunderbird 6.0 cpe:2.3:a:mozilla:thunderbird:6.0:*:*:*:*:*:*:*
mozilla thunderbird 6.0.1 cpe:2.3:a:mozilla:thunderbird:6.0.1:*:*:*:*:*:*:*
mozilla thunderbird 6.0.2 cpe:2.3:a:mozilla:thunderbird:6.0.2:*:*:*:*:*:*:*
mozilla thunderbird 7.0 cpe:2.3:a:mozilla:thunderbird:7.0:*:*:*:*:*:*:*
mozilla thunderbird 7.0.1 cpe:2.3:a:mozilla:thunderbird:7.0.1:*:*:*:*:*:*:*
mozilla seamonkey <= 2.5 cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:*
mozilla seamonkey 1.0 cpe:2.3:a:mozilla:seamonkey:1.0:*:*:*:*:*:*:*
mozilla seamonkey 1.0 cpe:2.3:a:mozilla:seamonkey:1.0:alpha:*:*:*:*:*:*
mozilla seamonkey 1.0 cpe:2.3:a:mozilla:seamonkey:1.0:beta:*:*:*:*:*:*
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 seamonkey 1.0.7 cpe:2.3:a:mozilla:seamonkey:1.0.7:*:*:*:*:*:*:*
mozilla seamonkey 1.0.8 cpe:2.3:a:mozilla:seamonkey:1.0.8:*:*:*:*:*:*:*
mozilla seamonkey 1.0.9 cpe:2.3:a:mozilla:seamonkey:1.0.9:*:*:*:*:*:*:*
mozilla seamonkey 1.1 cpe:2.3:a:mozilla:seamonkey:1.1:*:*:*:*:*:*:*
mozilla seamonkey 1.1 cpe:2.3:a:mozilla:seamonkey:1.1:alpha:*:*:*:*:*:*
mozilla seamonkey 1.1 cpe:2.3:a:mozilla:seamonkey:1.1:beta:*:*:*:*:*:*
mozilla seamonkey 1.1.1 cpe:2.3:a:mozilla:seamonkey:1.1.1:*:*:*:*:*:*:*
mozilla seamonkey 1.1.2 cpe:2.3:a:mozilla:seamonkey:1.1.2:*:*:*:*:*:*:*
mozilla seamonkey 1.1.3 cpe:2.3:a:mozilla:seamonkey:1.1.3:*:*:*:*:*:*:*
mozilla seamonkey 1.1.4 cpe:2.3:a:mozilla:seamonkey:1.1.4:*:*:*:*:*:*:*
mozilla seamonkey 1.1.5 cpe:2.3:a:mozilla:seamonkey:1.1.5:*:*:*:*:*:*:*
mozilla seamonkey 1.1.6 cpe:2.3:a:mozilla:seamonkey:1.1.6:*:*:*:*:*:*:*
mozilla seamonkey 1.1.7 cpe:2.3:a:mozilla:seamonkey:1.1.7:*:*:*:*:*:*:*
mozilla seamonkey 1.1.8 cpe:2.3:a:mozilla:seamonkey:1.1.8:*:*:*:*:*:*:*
mozilla seamonkey 1.1.9 cpe:2.3:a:mozilla:seamonkey:1.1.9:*:*:*:*:*:*:*
mozilla seamonkey 1.1.10 cpe:2.3:a:mozilla:seamonkey:1.1.10:*:*:*:*:*:*:*
mozilla seamonkey 1.1.11 cpe:2.3:a:mozilla:seamonkey:1.1.11:*:*:*:*:*:*:*
mozilla seamonkey 1.1.12 cpe:2.3:a:mozilla:seamonkey:1.1.12:*:*:*:*:*:*:*
mozilla seamonkey 1.1.13 cpe:2.3:a:mozilla:seamonkey:1.1.13:*:*:*:*:*:*:*
mozilla seamonkey 1.1.14 cpe:2.3:a:mozilla:seamonkey:1.1.14:*:*:*:*:*:*:*
mozilla seamonkey 1.1.15 cpe:2.3:a:mozilla:seamonkey:1.1.15:*:*:*:*:*:*:*
mozilla seamonkey 1.1.16 cpe:2.3:a:mozilla:seamonkey:1.1.16:*:*:*:*:*:*:*
mozilla seamonkey 1.1.17 cpe:2.3:a:mozilla:seamonkey:1.1.17:*:*:*:*:*:*:*
mozilla seamonkey 1.1.18 cpe:2.3:a:mozilla:seamonkey:1.1.18:*:*:*:*:*:*:*
mozilla seamonkey 1.1.19 cpe:2.3:a:mozilla:seamonkey:1.1.19:*:*:*:*:*:*:*
mozilla seamonkey 1.5.0.8 cpe:2.3:a:mozilla:seamonkey:1.5.0.8:*:*:*:*:*:*:*
mozilla seamonkey 1.5.0.9 cpe:2.3:a:mozilla:seamonkey:1.5.0.9:*:*:*:*:*:*:*
mozilla seamonkey 1.5.0.10 cpe:2.3:a:mozilla:seamonkey:1.5.0.10:*:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:*:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:alpha_1:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:alpha_2:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:alpha_3:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:beta_1:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:beta_2:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:rc1:*:*:*:*:*:*
mozilla seamonkey 2.0 cpe:2.3:a:mozilla:seamonkey:2.0:rc2:*:*:*:*:*:*
mozilla seamonkey 2.0.1 cpe:2.3:a:mozilla:seamonkey:2.0.1:*:*:*:*:*:*:*
mozilla seamonkey 2.0.2 cpe:2.3:a:mozilla:seamonkey:2.0.2:*:*:*:*:*:*:*
mozilla seamonkey 2.0.3 cpe:2.3:a:mozilla:seamonkey:2.0.3:*:*:*:*:*:*:*
mozilla seamonkey 2.0.4 cpe:2.3:a:mozilla:seamonkey:2.0.4:*:*:*:*:*:*:*
mozilla seamonkey 2.0.5 cpe:2.3:a:mozilla:seamonkey:2.0.5:*:*:*:*:*:*:*
mozilla seamonkey 2.0.6 cpe:2.3:a:mozilla:seamonkey:2.0.6:*:*:*:*:*:*:*
mozilla seamonkey 2.0.7 cpe:2.3:a:mozilla:seamonkey:2.0.7:*:*:*:*:*:*:*

References for CVE-2011-3663

cvelogic Threat Intelligence