What’s Vulnerable › Vulnerabilities

CVE-2018-25016

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-21 · updated 2026-06-17
• Weakness: CWE-74

Description

Greenbone Security Assistant (GSA) before 7.0.3 and Greenbone OS (GOS) before 5.0.0 allow Host Header Injection.

Affected products

• Greenbone OS: before 5.0.0 — fixed in 5.0.0
• Greenbone Security Assistant: before 7.0.3 — fixed in 7.0.3

How to fix

Upgrade to a fixed version: Greenbone OS 5.0.0; Greenbone Security Assistant 7.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/greenbone/gsa/pull/318
• https://github.com/greenbone/gsa/releases/tag/v7.0.3
• https://github.com/greenbone/gsa/pull/318
• https://github.com/greenbone/gsa/releases/tag/v7.0.3

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