CVE-2025-34288
mediumpriority · track · 28EPSS 0.019 · 79 %ileDEEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.1–8.6
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2862Nagios Enterprises Nagios XI: Schwachstelle ermöglicht Ausführen von beliebigem Programmcode mit AdministratorrechtenDeutsch2025-12-16csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Nagios Enterprises Nagios XI ausnutzen, um beliebigen Programmcode mit Administratorrechten auszuführen.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-34288cnnvd
- https://www.nagios.com/changelog/nagios-xi/2026r1-1/cnnvd
- https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-writable-php-include-executed-with-sudocnnvd
- https://www.nagios.com/changelog/nagios-xi/2026r1-1/enisa_euvd
- https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-writable-php-include-executed-with-sudoenisa_euvd
- https://www.nagios.com/changelog/nagios-xi/2026r1-1/Release Notesnvd
- https://www.vulncheck.com/advisories/nagios-xi-privilege-escalation-via-writable-php-include-executed-with-sudoThird Party Advisorynvd
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