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CVE Record

CVE-2026-57975: Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

HighCVSS 7.5Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a high-severity Microsoft Edge vulnerability that could let an attacker run code if a user is induced into the vulnerable path. The public bundle identifies a Chromium-based Edge type confusion flaw, but does not provide detailed affected build ranges here. Treat managed browsers as priority patch targets.

Executive priority

Prioritize this in the normal high-severity browser patch cycle. Escalate if Microsoft updates the advisory with exploitation evidence, broader affected versions, or emergency guidance.

Technical view

CVE-2026-57975 is a CWE-843 type confusion issue in Microsoft Edge (Chromium-based). CVSS 3.1 is 7.5, with network attack vector, no privileges required, user interaction required, high complexity, and high confidentiality, integrity, and availability impact. Microsoft’s advisory is listed as the patch source.

Likely exposure

Exposure is most likely on endpoints running Microsoft Edge (Chromium-based). The provided affected data names Edge but only lists version 1.0.0.0, so exact affected and fixed build boundaries must be confirmed in Microsoft’s advisory.

Exploitation context

The bundle does not support a claim of active exploitation. KEV is false and the CVSS exploit maturity is unproven. The vulnerability is still important because successful exploitation could produce remote code execution after user interaction.

Researcher notes

The source data is limited to the CVE description, CVSS vector, CWE-843 classification, KEV status, and Microsoft advisory reference. No exploit details, proof of concept, or detailed version matrix are provided in the bundle.

Mitigation direction

  • Review Microsoft’s advisory for affected and fixed Edge builds.
  • Update Microsoft Edge through enterprise browser management or normal update channels.
  • Prioritize managed workstations, shared desktops, and high-risk user groups.
  • Verify automatic Edge updates are enabled and completing successfully.

Validation and detection

  • Inventory Microsoft Edge versions across managed endpoints.
  • Compare installed versions against Microsoft’s CVE advisory.
  • Check patch compliance reports after deployment.
  • Confirm no unsupported or unmanaged Edge installations remain.
Prepared
Confidence
medium
Sources
3

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.

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.

cwe · low confidence lookup

CWE-843: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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description · low confidence lookup

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 lookup
cve · low confidence lookup

CVE-2026-57975 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/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
3Timeline events
1ADP providers
2Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C1.65.9microsoft

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2026-57975Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/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

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
MicrosoftMicrosoft Edge (Chromium-based)1.0.0.0Listed
Weakness

CWE details

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

CWE-843 · source CWE mapping

Access of Resource Using Incompatible Type ('Type Confusion')

Access of Resource Using Incompatible Type ('Type Confusion') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.