CVE-2025-62820
Quick assessment
Affected
Slack Nebula
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Slack Nebula是Slack开源的一款可扩展的覆盖网络工具。 Slack Nebula 1.9.7之前版本存在安全漏洞，该漏洞源于某些配置中CIDR处理不当，可能导致接受Nebula网络中的任意源IP地址。
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I. Basic Information for CVE-2025-62820
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Slack Nebula before 1.9.7 mishandles CIDR in some configurations and thus accepts arbitrary source IP addresses within the Nebula network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
未保护的候选通道
Source: CVE Program / CVE List V5
Vulnerability Title
Slack Nebula 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Slack Nebula是Slack开源的一款可扩展的覆盖网络工具。 Slack Nebula 1.9.7之前版本存在安全漏洞，该漏洞源于某些配置中CIDR处理不当，可能导致接受Nebula网络中的任意源IP地址。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-62820
| # | POC Description | Source Link | Shenlong Link |
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AI-Generated POC
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IV. Related Vulnerabilities
V. Comments for CVE-2025-62820
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