CVE-2026-72970: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Edge (Chromium-based)
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability is a heap-based buffer overflow in Microsoft Edge (Chromium-based) version 1.0.0.0. It allows remote attackers to execute arbitrary code by exploiting the overflow condition. The CVSS v3.1 score is 8.3, indicating high impact with network attack vector, low attack complexity, no privileges required, but user interaction needed. Microsoft has published an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
Successful exploitation could lead to remote code execution with high confidentiality and integrity impact, and low availability impact. This means an attacker could potentially run arbitrary code on the affected system, compromising data confidentiality and integrity.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72970 for detailed patching instructions.
CVE-2026-72970: CWE-122: Heap-based Buffer Overflow in Microsoft Microsoft Edge (Chromium-based)
Description
Heap-based buffer overflow in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 8.3high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a heap-based buffer overflow in Microsoft Edge (Chromium-based) version 1.0.0.0. It allows remote attackers to execute arbitrary code by exploiting the overflow condition. The CVSS v3.1 score is 8.3, indicating high impact with network attack vector, low attack complexity, no privileges required, but user interaction needed. Microsoft has published an official fix for this vulnerability as detailed in their security update guide.
Potential Impact
Successful exploitation could lead to remote code execution with high confidentiality and integrity impact, and low availability impact. This means an attacker could potentially run arbitrary code on the affected system, compromising data confidentiality and integrity.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided by Microsoft to remediate this vulnerability. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72970 for detailed patching instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-08-10T18:36:42.030Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-72970","vendor":"Microsoft"}]
Threat ID: 6a7f5a78bf8831d539821056
Added to database: 08/14/2026, 18:12:08 UTC
Last enriched: 08/14/2026, 18:26:08 UTC
Last updated: 08/14/2026, 18:57:15 UTC
Views: 4
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