Security readout for executives and security teams
Plain-English summary
CVE-2019-1081 is a Microsoft browser information-disclosure flaw in legacy EdgeHTML-based Edge and Internet Explorer. A victim must be persuaded to open attacker-controlled or compromised web content. Successful exploitation could leak information useful for further compromise, not directly provide full takeover according to the source.
Executive priority
Treat as moderate priority unless legacy Microsoft browsers are still business-critical. The main business risk is information leakage that may support later compromise, with exploitation requiring user action and no cited active exploitation.
Technical view
Affected Microsoft browsers improperly handle objects in memory, creating an information disclosure condition with low confidentiality and integrity impact. The CVSS 3.1 score is 4.2: network attack vector, high attack complexity, no privileges required, and user interaction required.
Likely exposure
Exposure is most likely where Internet Explorer 9, 10, 11, or EdgeHTML-based Microsoft Edge remain in use, especially on endpoints allowed to browse external or user-generated web content.
Exploitation context
The source describes web-based exploitation requiring social engineering or compromised/user-content websites. KEV is false, so the provided evidence does not support active exploitation. The CVSS temporal vector lists proof-of-concept maturity, but no operational exploit details are provided.
Researcher notes
The affected set is limited in the provided bundle to Microsoft Edge EdgeHTML-based and Internet Explorer 9, 10, and 11. The source does not name a CWE, detailed root cause, or workaround beyond Microsoft’s update behavior change.
Mitigation direction
- Apply the Microsoft security update for CVE-2019-1081.
- Confirm legacy Internet Explorer and EdgeHTML use is retired where possible.
- Restrict legacy browsers from accessing untrusted web content.
- Monitor Microsoft guidance for any revised remediation details.
Validation and detection
- Inventory endpoints for Internet Explorer 9, 10, 11, and EdgeHTML-based Edge.
- Verify the relevant Microsoft security update is installed.
- Review browser telemetry for continued legacy browser use.
- Check whether users can reach external user-generated content with affected browsers.
Public sources used
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2019-1081 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
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 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:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C1.62.5Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.2MediumVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- Microsoft Browser Information Disclosure VulnerabilityCVE reference · vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1081CVE reference · x_refsource_MISC, x_transferred
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.
