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CVE-2026-40405

🗓️ 13 May 2026 20:22:39Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 21 Views

CVE-2026-40405: null pointer dereference in Windows TCP/IP enables denial of service by an unauthorized attacker.

Related
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-40405
12 May 202616:58
–attackerkb
bdu_fstec
BDU FSTEC
Windows TCP/IP DoS
14 May 202600:00
–bdu_fstec
circl
Circl
CVE-2026-40405
12 May 202615:52
–circl
cnnvd
CNNVD
Microsoft Windows TCP/IP code issue vulnerability
12 May 202600:00
–cnnvd
cve
CVE
CVE-2026-40405
12 May 202616:58
–cve
cvelist
Cvelist
CVE-2026-40405 Windows TCP/IP Denial of Service Vulnerability
12 May 202616:58
–cvelist
euvd
EUVD
EUVD-2026-29665
12 May 202618:30
–euvd
mskb
Microsoft KB
May 12, 2026—Hotpatch KB5087423 (OS Build 26100.32772)
9 Jun 202614:00
–mskb
mskb
Microsoft KB
May 12, 2026—KB5087539(OS Build 26100.32860)
9 Jun 202614:00
–mskb
mskb
Microsoft KB
May 12, 2026—Hotpatch KB5089466 (OS Builds 26200.8390 and 26100.8390)
9 Jun 202614:00
–mskb
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13 May 2026 20:22Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.01174
SSVC
21