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CVE Record

CVE-2019-1081: Microsoft Browser Information Disclosure Vulnerability

An information disclosure vulnerability exists when affected Microsoft browsers improperly handle objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system. To exploit the vulnerability, in a web-based attack scenario, an attacker could host a website that is used to attempt to exploit the vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability. However, in all cases an attacker would have no way to force a user to view the attacker-controlled content. Instead, an attacker would have to convince a user to take action. For example, an attacker could trick a user into clicking a link that takes the user to the attacker's site. The security update addresses the vulnerability by modifying how Microsoft browsers handle objects in memory.

MediumCVSS 4.2Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

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.
Prepared
Confidence
high
Sources
4

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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.

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CVE-2019-1081 mapping review

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Vulnerability profileCVE Program record
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

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
4.2CVSS 3.1MediumCVSS: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 score

Vulnerability scoring details

Base CVSS 3.1 score

4.2Medium
CVSS 3.1 vector shape for CVE-2019-1081Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftMicrosoft Edge (EdgeHTML-based)1.0..0Listed
MicrosoftInternet Explorer 101.0.0Listed
MicrosoftInternet Explorer 91.0.0Listed
MicrosoftInternet Explorer 111.0.0Listed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.