Nagios XI Privilege Escalation via Writable PHP Include Executed with Sudo
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Nagios Enterprises | Nagios XI | unaffected |
|
Configuration 1 [-]
|
No data.
| Vendor | Product | Versions |
|---|---|---|
| Nagios | Nagios Xi | — |
| Nagios | Xi | — |
Vendor Solution
According to the vendor changelog, this issue was addressed by changing the ownership of constants.inc.php.
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 1.9% (1.853% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:* cpe:2.3:a:nagios:nagios_xi:2026:r1.0.1:*:*:*:*:*:* cpe:2.3:a:nagios:nagios_xi:2026:r1:*:*:*:*:*:* |
|
| Metrics |
cvssV3_1
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Nagios
Nagios nagios Xi Nagios xi |
|
| Vendors & Products |
Nagios
Nagios nagios Xi Nagios xi |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Nagios XI versions prior to 2026R1.1 are vulnerable to local privilege escalation due to an unsafe interaction between sudo permissions and application file permissions. A user‑accessible maintenance script may be executed as root via sudo and includes an application file that is writable by a lower‑privileged user. A local attacker with access to the application account can modify this file to introduce malicious code, which is then executed with elevated privileges when the script is run. Successful exploitation results in arbitrary code execution as the root user. | |
| Title | Nagios XI Privilege Escalation via Writable PHP Include Executed with Sudo | |
| Weaknesses | CWE-732 | |
| References |
| |
| Metrics |
cvssV4_0
|