CVE-2026-62742
Integer underflow (wrap or wraparound) in Windows DHCP Server allows an unauthorized attacker to disclose information over an adjacent network.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
- EPSS probability
- 0.48%
- CWE
- CWE-191, CWE-125
- Published
- 2026-08-11
- Last modified
- 2026-09-16
Affected products
- Microsoft Windows 10 Version 1607
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2012
- Microsoft Windows Server 2012 (Server Core installation)
- Microsoft Windows Server 2012 R2
- Microsoft Windows Server 2012 R2 (Server Core installation)
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
Weakness type
Related vulnerabilities
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- CVE-2024-57823 — In Raptor RDF Syntax Library through 2.0.16, there is an integer underflow when normalizing a URI with the turtle parser
- CVE-2025-55118 — BMC Control-M/Agent memory corruption in SSL/TLS communication
- CVE-2025-29913 — CryptoLib's Crypto_TC_Prep_AAD Has Buffer Overflow Due to Integer Underflow
- CVE-2025-29912 — CryptoLib Has Heap Buffer Overflow Due to Unsigned Integer Underflow in Crypto_TC_ProcessSecurity
- CVE-2025-29909 — CryptoLib's Crypto_TC_ApplySecurity() Has a Heap Buffer Overflow Vulnerability