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Net CVE-2026-39836

| EUVDEUVD-2026-28427 HIGH
NULL Pointer Dereference (CWE-476)
2026-05-07 Go GHSA-8g2r-hhvj-mv99
7.5
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SUSE
HIGH
qualitative
Red Hat
7.5 MEDIUM
qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

5
Analysis Generated
Jul 23, 2026 - 22:59 vuln.today
CVSS changed
May 08, 2026 - 22:22 NVD
7.5 (HIGH)
Patch available
May 07, 2026 - 21:02 EUVD
CVE Published
May 07, 2026 - 19:41 nvd
HIGH 7.5
CVE Published
May 07, 2026 - 19:41 nvd
UNKNOWN (no severity yet)

DescriptionCVE.org

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

AnalysisAI

Denial of service in the Go standard library's net package (on Windows) allows remote attackers to crash applications by supplying host or port inputs containing an embedded NUL (0) byte, which triggers a nil pointer dereference and panic in the Dial and LookupPort functions. Affected releases are net versions below 1.25.10 and 1.26.0 through 1.26.2, with publicly available exploit code but no evidence of active exploitation (EPSS 0.01%). Impact is limited to availability — a crashed process or goroutine — with no confidentiality or integrity effect.

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Vendor StatusVendor

SUSE

Severity: High
Product Status
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS Affected
SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS Affected

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CVE-2026-39836 vulnerability details – vuln.today

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