CVE-2014-1764Internet Explorer Vulnerability
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code and bypass a sandbox protection mechanism by leveraging "object confusion" in a broker process, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2014.
Published Apr 27, 2014 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2014-1764 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Internet Explorer (Microsoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 38% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
38%
Higher than 98.5% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
38/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Description
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code and bypass a sandbox protection mechanism by leveraging "object confusion" in a broker process, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2014.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Internet ExplorerMicrosoft | 10, 11, 7, 8, 9 | n/a |
Timeline
Publicly disclosed
Apr 27, 2014
Last updated
May 6, 2026
Weakness Type
- CWE-264
References
- exploitExploitDB-34010
- otherMS14-035
- othertwitter.com · 443855973673754624
- otherpwn2own.com · pwn2own-results-for-wednesday-day-one
- other20140716 VUPEN Security Research - Microsoft Internet Explorer "Request" Object Confusion Sandbox Bypass (Pwn2Own 2014)
FAQ
Common Questions.
Microsoft Internet Explorer 7 through 11 allows remote attackers to execute arbitrary code and bypass a sandbox protection mechanism by leveraging "object confusion" in a broker process, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2014.
Affected: Internet Explorer (Microsoft) versions 10, 11, 7, 8, 9. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
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