Use After Free in Microsoft Internet_explorer
CVE-2014-1776
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 func…
Vulnerability class: Use-After-Free
EPSS: 0.880 (99.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK, Broken Link)
- secure@microsoft.com (x_refsource_OSVDB, vdb-entry, Broken Link)
- secure@microsoft.com (x_refsource_MS, vendor-advisory, Patch, Vendor Advisory)
- secure@microsoft.com (x_refsource_CONFIRM, Mitigation, Broken Link)
- secure@microsoft.com (x_refsource_SECUNIA, Broken Link, third-party-advisory)
- secure@microsoft.com (Exploit, Third Party Advisory, x_refsource_MISC)
- secure@microsoft.com (x_refsource_MISC, Broken Link)
- secure@microsoft.com (US Government Resource, x_refsource_CERT-VN, Third Party Advisory, Mitigation, third-party-advisory)
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)
- secure@microsoft.com (VDB Entry, Third Party Advisory, vdb-entry, Broken Link, x_refsource_BID)
Frequently asked questions
- What is CVE-2014-1776?
- CVE-2014-1776 is a critical-severity vulnerability in Microsoft Internet_explorer, classified under Use After Free. CVSS score: 9.8/10. Published 2014-04-27.
- How severe is CVE-2014-1776?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2014-1776 known to be exploited?
- Yes. CVE-2014-1776 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-01-28), indicating it is being actively exploited. 17 public proof-of-concept repositories are indexed.