CVE-2021-33178
The Manage Backgrounds functionality within Nagvis versions prior to 2.0.9 is vulnerable to an...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-33178- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - CVSS 2.0
- 8.5 High
AV:N/AC:L/Au:S/C:N/I:C/A:C - Weakness
- CWE-22
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2021-33178- Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2021-19893 No score
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.
- Record
EUVD-2021-19893- Updated
- 2026-11-02
GitHub AdvisoriesGHSA-g6fj-g9qm-g5xw
The Manage Backgrounds functionality within Nagvis versions prior to 2.0.9 is vulnerable to an...
The Manage Backgrounds functionality within Nagvis versions prior to 2.0.9 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.
- Record
GHSA-g6fj-g9qm-g5xw- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2021-33178- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2021-33178
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.
- Record
DEBIAN-CVE-2021-33178- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2021-33178
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.
- Record
UBUNTU-CVE-2021-33178- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H - Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nagvisDebian:12 |
before 1:1.9.29-1 | 1:1.9.29-1 |
nagvisDebian:13 |
before 1:1.9.29-1 | 1:1.9.29-1 |
nagvisDebian:14 |
before 1:1.9.29-1 | 1:1.9.29-1 |
nagvisDebian:11 From an advisory covering 7 CVEs |
before 1:1.9.25-2+deb11u1, plus listed versions 1:1.9.25-2 |
1:1.9.25-2+deb11u1 |
nagvisUbuntu:16.04:LTS |
All versions, plus listed versions 1:1.7.10+dfsg1-31:1.7.10+dfsg1-3ubuntu1 |
None known |
nagvisUbuntu:18.04:LTS |
All versions, plus listed versions 1:1.7.10+dfsg1-3.2 |
None known |
nagvisUbuntu:22.04:LTS |
All versions, plus listed versions 1:1.9.25-21:1.9.27-11:1.9.28-11:1.9.29-11:1.9.30-1 |
None known |
nagvisUbuntu:24.04:LTS |
All versions, plus listed versions 1:1.9.36-11:1.9.38-11:1.9.39-11:1.9.40-1 |
None known |
nagvisUbuntu:25.10 |
All versions, plus listed versions 1:1.9.44-11:1.9.46-11:1.9.47-1 |
None known |
nagvisUbuntu:26.10 |
All versions, plus listed versions 1:1.9.48-11:1.10.3-11:1.10.4-11:1.10.5-11:1.10.6-1 |
None known |
nagvisUbuntu:26.04:LTS |
All versions, plus listed versions 1:1.9.47-11:1.9.48-1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-33178 is a medium vulnerability (CVSS 6.5) in Nagvis, published October 14, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.94%, the 80th percentile. Fixed in nagvis 1:1.9.29-1.
References
synopsys.com/blogs/software-security/cyrc-advisory-nagios-xi
nagvis.org/downloads/changelog/1.9.29
lists.debian.org/debian-lts-announce/2025/05/msg00000.html
nvd.nist.gov/vuln/detail/CVE-2021-33178
github.com/advisories/GHSA-g6fj-g9qm-g5xw
security-tracker.debian.org/tracker/CVE-2021-33178
ubuntu.com/security/CVE-2021-33178
cve.org/CVERecord?id=CVE-2021-33178