CVE-2014-1776
Severity CVSS v4.0:
Pending analysis
Type:
CWE-416
Use After Free
Publication date:
27/04/2014
Last modified:
22/10/2025
Description
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."
Impact
Base Score 3.x
9.80
Severity 3.x
CRITICAL
Base Score 2.0
10.00
Severity 2.0
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:microsoft:internet_explorer:6:*:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:-:* | ||
| cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:* | ||
| cpe:2.3:a:microsoft:internet_explorer:7:*:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:-:* | ||
| cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:* | ||
| cpe:2.3:a:microsoft:internet_explorer:8:*:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* | ||
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx
- http://secunia.com/advisories/57908
- http://securitytracker.com/id?1030154=
- http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html
- http://www.kb.cert.org/vuls/id/222929
- http://www.osvdb.org/106311
- http://www.securityfocus.com/bid/67075
- http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021
- https://technet.microsoft.com/library/security/2963983
- http://blogs.technet.com/b/srd/archive/2014/04/30/protection-strategies-for-the-security-advisory-2963983-ie-0day.aspx
- http://secunia.com/advisories/57908
- http://securitytracker.com/id?1030154=
- http://www.fireeye.com/blog/uncategorized/2014/04/new-zero-day-exploit-targeting-internet-explorer-versions-9-through-11-identified-in-targeted-attacks.html
- http://www.kb.cert.org/vuls/id/222929
- http://www.osvdb.org/106311
- http://www.securityfocus.com/bid/67075
- http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021
- https://technet.microsoft.com/library/security/2963983
- https://www.vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-detection-script
- https://www.vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-mitigation-scripts
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-1776