CVE-2014-1766

Exp

Microsoft Internet Explorer 9 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, as demonstrated by Sebastian Apelt and Andreas Schmidt during a Pwn2Own competition at CanSecWest 2014. NOTE: the original disclosure referred to triggering a kernel bug with the Internet Explorer exploit payload, but this ID is not for a kernel vulnerability.

Published: 2014-04-27 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-1766 is rated High Exploit Risk (91.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 33.06%, 98th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +22.09% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2014-1766

EDB-ID Source Kind Published Link
34010 exploit_db edb 2014-07-08 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-1766

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 10.97% 33.06% +22.09%
2 2026-01-04 20.84% 10.97% -9.88%
3 2025-12-11 — 20.84% —

Full EPSS history (20 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-1766

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C 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:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2014-1766

Affected software / configurations for CVE-2014-1766

Vendor Product Version Raw CPE
microsoft internet_explorer 9 cpe:2.3:a:microsoft:internet_explorer:9:*:*:*:*:*:*:*
microsoft internet_explorer 10 cpe:2.3:a:microsoft:internet_explorer:10:*:*:*:*:*:*:*
microsoft internet_explorer 11 cpe:2.3:a:microsoft:internet_explorer:11:-:*:*:*:*:*:*

References for CVE-2014-1766

cvelogic Threat Intelligence