Security readout for executives and security teams
CVE-2014-1776 is a critical Internet Explorer memory-safety flaw that can let a malicious webpage run code on a user’s machine. It affected Internet Explorer 6 through 11 and was exploited in the wild in April 2014. Any remaining legacy IE dependency should be treated as urgent technical debt. Exposure is most likely where Windows endpoints still allow Internet Explorer 6 through 11, legacy web apps require IE, or embedded IE components remain in workflows. Modern environments without IE use have materially lower exposure, but should still verify inventory. High priority for any organization with legacy IE exposure. This is old but confirmed exploited and critical. The business decision is whether any remaining IE dependency justifies the security risk; patching and migration should be tracked to closure. Mitigation focus: Apply Microsoft MS14-021 and relevant Internet Explorer security updates.; Retire or block Internet Explorer 6 through 11 where operationally possible.; Use Microsoft-published workarounds only as interim compensating controls..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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Open ATT&CK lookupExecution behavior lookup
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Open ATT&CK lookupCVE-2014-1776 mapping review
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Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
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CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- MS14-021CVE reference · vendor-advisory, x_refsource_MS
- https://technet.microsoft.com/library/security/2963983CVE reference · x_refsource_CONFIRM
- https://www.vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-mitigation-scriptsCVE reference
- https://www.vicarius.io/vsociety/posts/cve-2014-1776-use-after-free-vulnerability-in-microsoft-internet-explorer-detection-scriptCVE reference
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-1776CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use After Free
Use After Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.