Which products and versions are affected by CVE-2014-1770?

Affected: Internet Explorer (Microsoft) versions 10, 11, 6, 7, 8, 9. The full list is in the CVE brief.

Is CVE-2014-1770 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2014-1770 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2014-1770?

Public exploit code is available.

Is there a fix for CVE-2014-1770?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2014-1770 be patched?

Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.

Request A Demo

WatchlistCritical

CVE-2014-1770Internet Explorer Vulnerability

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…

Published May 22, 2014 · Updated May 6, 2026

Key Facts

Patch immediately

CVE-2014-1770 is a critical-severity vulnerability (CVSS 9.3 v2) affecting Internet Explorer (Microsoft).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 35% 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

9.3

AV:N/AC:M/Au:N/C:C/I:C/A:C

EPSS (30-day exploit likelihood)

35%

Higher than 98.4% of all scored CVEs

Exploit maturity

Proof of concept

ATLAS score

41/100

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

Proof-of-concept links

In-the-wild evidence

Reports of active use

Advisories And Exploit References

Description

Affected Products

6 affected entries in total

Product	Affected versions	Fixed in
Internet ExplorerMicrosoft	10, 11, 6, 7, 8, 9	n/a

Timeline

Publicly disclosed
May 22, 2014
Last updated
May 6, 2026

Weakness Type

CWE-399

References

2 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Internet Explorer (Microsoft) versions 10, 11, 6, 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.

Is CVE-2014-1770 On Your Attack Surface?

Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.