What’s Vulnerable › Vulnerabilities

CVE-2021-33178

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-10-14 · updated 2026-06-17
• Weakness: CWE-22

Description

The Manage Backgrounds functionality within NagVis versions prior to 1.9.29 is vulnerable to an authenticated path traversal vulnerability. Exploitation of this results in a malicious actor having the ability to arbitrarily delete files on the local system.

Affected products

• Nagvis: before 1.9.29 — fixed in 1.9.29

How to fix

Upgrade to a fixed version: Nagvis 1.9.29. Check the vendor advisory for mitigations.

References

• https://nagvis.org/downloads/changelog/1.9.29
• https://www.synopsys.com/blogs/software-security/cyrc-advisory-nagios-xi
• https://lists.debian.org/debian-lts-announce/2025/05/msg00000.html
• https://nagvis.org/downloads/changelog/1.9.29
• https://www.synopsys.com/blogs/software-security/cyrc-advisory-nagios-xi

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