{“lastseen”:””,”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\u2011accessible maintenance script may be executed as root via sudo and includes an application file that is writable by a lower\u2011privileged 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.”,”published”:”2025-12-16T22:17:02.004Z”,”modified”:”2025-12-16T22:17:02.004Z”,”type”:”cve”,”title”:”Nagios XI Privilege Escalation via Writable PHP Include Executed with Sudo”,”source”:”VulnCheck”,”references”:”https:\/\/www.nagios.com\/changelog\/nagios-xi\/2026r1-1\/\\nhttps:\/\/www.vulncheck.com\/advisories\/nagios-xi-privilege-escalation-via-writable-php-include-executed-with-sudo”,”id”:”CVE-2025-34288″,”bulletinFamily”:””,”cwe”:[“CWE-732″],”cvelist”:null,”sourceData”:”Nagios Enterprises Nagios XI 0″,”sourceHref”:””,”cvss”:{“score”:8.6,”severity”:”HIGH”,”vector”:”CVSS:4.0\/AV:N\/AC:L\/AT:N\/PR:H\/UI:N\/VC:H\/VI:H\/VA:H\/SC:N\/SI:N\/SA:N”,”version”:”4.0″},”cvss2″:{},”cvss3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””,”cvssV3″:{“version”:””,”vectorString”:””,”baseScore”:0,”baseSeverity”:””,”attackVector”:””,”attackComplexity”:””,”privilegesRequired”:””,”userInteraction”:””,”scope”:””,”confidentialityImpact”:””,”integrityImpact”:””,”availabilityImpact”:””}},”href”:””,”category_name”:”CVE”,”post_link”:””,”product”:”Nagios XI”,”version”:”prior to 2026R1.1″,”vendor”:”Nagios Enterprises”,”ai_description”:”Local privilege escalation vulnerability in Nagios XI due to unsafe interaction between sudo permissions and application file permissions, allowing arbitrary code execution as root.”,”ai_severity”:”High”,”ai_vendor”:”Nagios Enterprises”,”ai_product”:”Nagios XI”,”ai_version”:”prior to 2026R1.1″,”ai_score”:8.6}<\/p>\n","protected":false},"excerpt":{"rendered":"
{“lastseen”:””,”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…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,81,12,15,13,7,11,5],"class_list":["post-31478","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-86","tag-exploit","tag-high","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"\n