CVE-2026-39836

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/775320	Patch
https://go.dev/issue/79006	Issue Tracking
https://groups.google.com/g/golang-announce/c/qcCIEXso47M	Issue Tracking Mailing List
https://pkg.go.dev/vuln/GO-2026-4971	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:golang:go::::::::
	cpe:2.3:a:golang:go::::::::

History

13 May 2026, 15:11

Type	Values Removed	Values Added
CPE		cpe:2.3:a:golang:go::::::::
References	~~() https://go.dev/cl/775320 -~~	() https://go.dev/cl/775320 - Patch
References	~~() https://go.dev/issue/79006 -~~	() https://go.dev/issue/79006 - Issue Tracking
References	~~() https://groups.google.com/g/golang-announce/c/qcCIEXso47M -~~	() https://groups.google.com/g/golang-announce/c/qcCIEXso47M - Issue Tracking, Mailing List
References	~~() https://pkg.go.dev/vuln/GO-2026-4971 -~~	() https://pkg.go.dev/vuln/GO-2026-4971 - Vendor Advisory
CWE		CWE-476
First Time		Golang Golang go

08 May 2026, 22:16

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5

07 May 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-07 20:16

Updated : 2026-05-13 15:11

NVD link : CVE-2026-39836

Mitre link : CVE-2026-39836

CVE.ORG link : CVE-2026-39836

JSON object : View

Products Affected

golang

go

CWE

CWE-476

NULL Pointer Dereference

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