CVE-2025-62820

4.9 MEDIUM

Published: October 23, 2025 Modified: October 27, 2025

Description

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

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0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L

Patch Vendor Advisory Exploit Third Party Advisory

Source: cve@mitre.org

Source: cve@mitre.org

2 reference(s) from NVD

CVSS v3 Score

4.9 / 10.0

EPSS (Exploit Probability)

0.1%

17th percentile

Exploitation Status

Not in CISA KEV

CWE-420