Type confusion in Microsoft Edge (Chromium-based) allows remote code execution
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-843 and the CVSS impact.
Summary
Microsoft Edge (Chromium-based) from 1.0.0.0 before 149.0.4022.62 is affected. The browser accesses a resource using an incompatible type, a type confusion flaw (CWE-843). An unauthorized attacker can execute code over a network.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update Microsoft Edge (Chromium-based) to 149.0.4022.62, the first fixed version.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA Microsoft Edge (Chromium-based) (Microsoft) Fixed in 149.0.4022.62
Timeline
- 2026-10-27 Threatist record created from CVE-2026-62765
- 2026-10-28 Alias added: GHSA-xrgq-g37p-ph96
- 2026-10-28 Priority changed: MEDIUM → LOW
- 2026-10-30 CISA SSVC decision points changed
- 2026-11-02 CVSS score added · NVD
References
More Microsoft Edge Chromium vulnerabilities
- 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
Sources
- CVE-2026-62765 · CVE Program
- CVE-2026-62765 · NVD
- FIRST EPSS
- GHSA-xrgq-g37p-ph96 · GitHub Advisory Database · CC BY 4.0
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