CVE-2021-37351
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated...
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated users to access guarded pages through a crafted HTTP request to the server.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated users to access guarded pages through a crafted HTTP request to the server.
- Record
CVE-2021-37351- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:N - Weakness
- CWE-276
- Updated
- 2026-11-02
CVE List No score
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated users to access guarded pages through a crafted HTTP request to the server.
- Record
CVE-2021-37351- Updated
- 2026-11-02
EUVDEUVD-2021-23920 No score
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated users to access guarded pages through a crafted HTTP request to the server.
- Record
EUVD-2021-23920- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-837c-9cp4-5j9q No score
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated...
Nagios XI before version 5.8.5 is vulnerable to insecure permissions and allows unauthenticated users to access guarded pages through a crafted HTTP request to the server.
- Record
GHSA-837c-9cp4-5j9q- Weakness
- CWE-276
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-37351 is a medium vulnerability (CVSS 5.3) in Nagios Xi, published August 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.83%, the 86th percentile. No source names a fixed version.