CVE-2020-15903
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in...
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.
- Record
CVE-2020-15903- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE List No score
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.
- Record
CVE-2020-15903- Updated
- 2026-11-02
EUVDEUVD-2020-7876 No score
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.
- Record
EUVD-2020-7876- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-mf64-j3g8-vgpj No score
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in...
An issue was found in Nagios XI before 5.7.3. There is a privilege escalation vulnerability in backend scripts that ran as root where some included files were editable by nagios user. This issue was fixed in version 5.7.3.
- Record
GHSA-mf64-j3g8-vgpj- Weakness
- CWE-269
- 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-2020-15903 is a critical vulnerability (CVSS 9.8) in Nagios Xi, published September 9, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.55%, the 92nd percentile. No source names a fixed version.