SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2014-1770

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code via crafted JavaScript code that interacts improperly with a CollectGarbage function call on a CMarkup object allocated by the…

EXPLOITHIGH 9.3EPSS 34.7%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 34.7%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code via crafted JavaScript code that interacts improperly with a CollectGarbage function call on a CMarkup object allocated by the CMarkup::CreateInitialMarkup function.

CVSS 2.0
9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
EPSS
34.66% probability · 98th percentile
Public exploits
1 in Exploit-DB · first 8 July 2014
CISA KEV
Not listed
Weakness
CWE-399
Affected
microsoft/internet explorer
Source
secure@microsoft.com
EPSS trend
0%18%35%4 November 2026: 34.66%4 November 20264 November 2026

EPSS 34.7% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-34010source ↗Microsoft Internet Explorer 9/10 - CFormElement Use-After-Free / Memory Corruption (PoC) (MS14-035)windows_x86 · Drozdova Liudmilados8 July 2014no

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.