Security readout for executives and security teams
CVE-2018-0840 is a Microsoft browser scripting engine memory corruption flaw that can allow remote code execution. Business risk is highest where legacy Windows systems still use Internet Explorer or older Microsoft Edge versions to browse untrusted content. Exposure is most likely on legacy or unpatched Windows endpoints and servers using affected Internet Explorer or Microsoft Edge builds. Modern environments may still be exposed through retained compatibility systems, kiosk browsers, or unmanaged older Windows assets. Treat this as a legacy-browser RCE risk. Prioritize environments with unsupported Windows versions, unmanaged desktops, or business workflows still dependent on Internet Explorer or old Edge. Mitigation focus: Follow Microsoft MSRC guidance for CVE-2018-0840 fixes or workarounds.; Patch affected Windows, Internet Explorer, Edge, and ChakraCore components as directed by Microsoft.; Retire, upgrade, or isolate unsupported legacy Windows systems..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-0840 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-0840CVE reference · x_refsource_CONFIRM
- 44077CVE reference · exploit, x_refsource_EXPLOIT-DB
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.