CVE-2014-1776
ENISA EUVD: EUVD-2014-1850 ↗
Exploited in the Wild
✓ Confirmed 0-Day
Triaged: March 20, 2026
2 articles
Published: 2014-04-27
EPSS Score
Source: FIRST.org · 2026-05-24
84.02%
probability
This CVE has a 84.02% probability
of being exploited in the next 30 days.
0%
Top 99.3th percentile of all CVEs
100%
CVSS v3.1
Source: VulnerabilityLookup (CIRCL)9.8
CRITICAL
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
VulnerabilityLookup (CNA)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."
Affected Products
n/a
n/a
Attack Intelligence
CWE-118
· Incorrect Access of Indexable Resource ('Range Error')
CWE-119
· Buffer Overflow
CWE-416
· Use After Free
CWE-664
· Improper Control of a Resource Through its Lifetime
CWE-666
· Operation on Resource in Wrong Phase of Lifetime
CWE-672
· Operation on a Resource after Expiration or Release
CWE-825
· Expired Pointer Dereference
http://securitytracker.com/id?1030154
vdb-entry
x_refsource_SECTRACK
http://www.osvdb.org/106311
vdb-entry
x_refsource_OSVDB
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-021
vendor-advisory
x_refsource_MS
http://secunia.com/advisories/57908
third-party-advisory
x_refsource_SECUNIA
http://www.signalsec.com/cve-2014-1776-ie-0day-analysis/
x_refsource_MISC
Signal Intelligence
Confidence
82%
EPSS
84.02%
CVSS v3.1
9.8
Mentions
2
Last Seen
May 01, 2015
CNA Information
CNA Assigner
microsoft
Analyst Note
CVE-2014-1776 is a critical IE zero-day that Microsoft confirmed in 2014 with active exploitation reported before patch availability. The vulnerability affected all IE versions (6-11) and was widely documented as exploited in the wild prior to remediation, meeting all zero-day criteria.
Threat Actors 2
The Shadow Brokers
apt_group
🇷🇺 RU
Equation Group
apt_group
Sabotage and destruction
🇺🇸 US
Triage Info
Decided atMar 20, 2026
Published DateApr 27, 2014