CVE-2026-62720: CWE-191: Integer Underflow (Wrap or Wraparound) in Microsoft Windows 10 Version 1607
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
AI Analysis
Technical Summary
This vulnerability involves an integer underflow (wrap or wraparound) in the Windows DHCP Server on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow an unauthorized attacker to disclose information over an adjacent network segment. The CVSS vector indicates the attack requires adjacent network access, no privileges, and no user interaction, with a high impact on confidentiality but no impact on integrity or availability. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation can lead to unauthorized information disclosure over an adjacent network. There is no impact on system integrity or availability. The vulnerability does not require user interaction or privileges, but the attacker must be on an adjacent network.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62720 to remediate this vulnerability.
CVE-2026-62720: CWE-191: Integer Underflow (Wrap or Wraparound) in Microsoft Windows 10 Version 1607
Description
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an integer underflow (wrap or wraparound) in the Windows DHCP Server on Windows 10 Version 1607 (build 10.0.14393.0). Exploitation could allow an unauthorized attacker to disclose information over an adjacent network segment. The CVSS vector indicates the attack requires adjacent network access, no privileges, and no user interaction, with a high impact on confidentiality but no impact on integrity or availability. Microsoft has released an official fix for this vulnerability.
Potential Impact
Successful exploitation can lead to unauthorized information disclosure over an adjacent network. There is no impact on system integrity or availability. The vulnerability does not require user interaction or privileges, but the attacker must be on an adjacent network.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62720 to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-07-14T20:58:12.786Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-62720","vendor":"Microsoft"}]
Threat ID: 6a7b580dbf8831d539155b27
Added to database: 08/11/2026, 17:12:45 UTC
Last enriched: 08/11/2026, 22:13:47 UTC
Last updated: 08/12/2026, 00:18:40 UTC
Views: 3
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