CVE-2025-62820

medium

Description

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

References

https://github.com/slackhq/nebula/pull/1494

https://github.com/slackhq/nebula/pull/1493

Details

Source: Mitre, NVD

Published: 2025-10-23

Updated: 2026-04-15

Risk Information

CVSS v2

Base Score: 3.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:P/A:P

Severity: Low

CVSS v3

Base Score: 4.9

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

Severity: Medium

EPSS

EPSS: 0.00036