CVE•Published 2025-10-30•Modified 2026-10-07•1 article on news•4 live references•NVD data
CVE-2025-34277Nagios · Log_server
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
82
Exploit Prediction Scoring System · top 18% of all CVEs
Weaknesses (CWE)
Description
Nagios Log Server versions prior to 2024R1.3.1 contain a code injection vulnerability where malformed dashboard ID values are not properly validated before being forwarded to an internal API. An attacker able to supply crafted dashboard ID values can cause the system to execute attacker-controlled data, leading to arbitrary code execution in the context of the Log Server process.
Timeline
Published 2025-10-30
Modified 2026-10-07
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2025-34277Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Nagios Log Server"All exposed Nagios Log Server instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Log Server"HTTP body or banner mentions "Log Server" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2025-34277Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-34277Censys host search filtered to this CVE id.
grep.app
CVE-2025-34277Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-34277GitHub code search for direct mentions.
Google dork
"CVE-2025-34277" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.