CVE-2025-62820

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CVSS 3.1

4.9 medium

EPSS

<1%p10

Published

Oct 23, 2025 (Oct 23, 2025)

Modified

Jun 17, 2026

Description

Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.

Weakness: CWE-420
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L

NVD CVE.org GitHub PoCs EPSS (0.2%)

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