CVE detail
CVE-2026-40415
Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 13.9 · diversity 11.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 0
- within the 30d window
- Peak daily
- 0
- highest bucket
Evidence
Source links by recency
3 source links · newest first
Microsoft’s May 2026 Patch Tuesday fixed 138 flaws, including 30 critical bugs, across Windows, Office, Azure, Edge, SQL Server, and more. Microsoft’s May 2026 Patch Tuesday patched 138 vulnerabilities in a single release. That is a number that gives pause even for people accustomed to these cycles. The affected products span virtually the entire Microsoft […]
newssecurityaffairs.comMay 13, 2026, 7:28 PM- The May 2026 Security Update ReviewZero Day Initiative
take a closer look at some of the more interesting updates for this month, starting with a nasty-looking bug in DNS: - CVE-2026-41096 - Windows DNS Client Remote Code Execution Vulnerability This patch fixes a heap-based buffer overflow in the DNS Client triggered by a malicious DNS response. No authentication or user interaction needed, and since the
vendorwww.thezdi.comMay 12, 2026, 6:38 PM Use after free in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
vendormsrc.microsoft.comMay 12, 2026, 2:00 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
Related records
Similar CVEs
6 related CVEs with shared weakness or product evidence
- CVE-2026-42825CVSS 7.0 · High
Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-40410CVSS 7.0 · High
Use after free in Windows SMB Client allows an authorized attacker to elevate privileges locally.
- CVE-2026-40408CVSS 7.8 · High
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
- CVE-2026-40406CVSS 7.5 · High
Use after free in Windows TCP/IP allows an unauthorized attacker to disclose information over a network.
- CVE-2026-40382CVSS 7.8 · High
Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.
- CVE-2026-35418CVSS 7.8 · High
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.