MicrosoftCVE-2026-72970
Microsoft Edge (Chromium-based): heap buffer overflow
High8.3CVE-2026-72970 · Published Aug 14, 2026 · updated Aug 18, 2026
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Microsoft Edge (Chromium-based) Product | >= 1.0.0.0, < 151.0.4129.86 | 151.0.4129.86 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-122
More Microsoft advisories
All Microsoft| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 14 | Microsoft Malware Protection Engine: privilege escalation | High7.8 | 1.1.26080.3 |
| Aug 14 | Microsoft PowerShell: command injection | High7.8 | 7.4.19.0+2 more |
| Aug 12 | Fetch Web Page OS protocol handler remote code execution | High8.8 | 1.132.1 |
| Aug 12 | Agent network filter bypass via IPv4-mapped IPv6 literals | High8.2 | 1.132.1 |
| Aug 11 | Copilot Chat Security Feature Bypass Vulnerability | High7.1 | 1.132.1 |
| Aug 11 | Copilot Custom Agent Hook Remote Code Execution Vulnerability | High7.8 | 1.132.1 |