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TI-2026-47112 Aliases CVE-2026-66313GHSA-8q78-vm89-wh64

Microsoft Edge (Chromium-based) Tampering Vulnerability

Priority LOW 30CWE-346Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Tampering
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from Microsoft.

Summary

Origin validation error in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform tampering locally.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00234 14th percentileScored 2026-11-07
Fix Fixed Microsoft Edge (Chromium-based) (Microsoft): 151.0.4129.59

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft Edge (Chromium-based)1.0.0.0 to before 151.0.4129.59151.0.4129.59Patch availableCNA
  • Microsoft Edge (Chromium-based) VendorMicrosoft Affected 1.0.0.0 to before 151.0.4129.59 Fixed in 151.0.4129.59 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:*before 151.0.4129.59VulnerableMicrosoft
  • cpe:2.3:a:microsoft:edge_chromium:*:*:*:*:*:*:*:* Versions before 151.0.4129.59 Vulnerable ·Microsoft

Remediation

  • Fix · CNA Microsoft Edge (Chromium-based) (Microsoft) Fixed in 151.0.4129.59

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Tampering
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Unlikely
ProductStatusPlan or fix
Microsoft Edge (Chromium-based)Fixed 151.0.4129.59 · Security Update

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-66313
  2. 2026-10-03 Alias added: GHSA-8q78-vm89-wh64

References

Patch 1

  • TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2022-03781 Out-of-bounds write in Google Chrome KEVCVSS 3.1CRITICAL 9.6
  • TI-2025-12953 Memory corruption in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2025-04867 Out-of-bounds read in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2024-07384 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 325 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences