CVE-2025-34277 Nagios Log Server < 2024R1.3.1 RCE via Malformed Dashboard ID
Attackers can execute arbitrary code by sending malformed dashboard IDs to Nagios Log Server, requiring an upgrade to the latest version.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-34277?
CVE-2025-34277 is a critical code injection vulnerability in Nagios Log Server, published on 30 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-94
Which versions are affected by CVE-2025-34277?
It affects 1 product.
Products include Nagios Log Server.
How do I fix CVE-2025-34277?
No fix has been published for CVE-2025-34277 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2025-34277 being exploited?
There is no known exploitation of CVE-2025-34277 in the wild and no public exploit code.
Other vulnerabilities in Nagios Log Server
- CVE-2025-44823 Information disclosure in Log Server
- CVE-2025-34274 Nagios Log Server < 2024R2.0.3 Logstash Process Root Privileges
- CVE-2023-7322 Nagios Log Server < 2024R1 Incorrect Authorization Granting Full API Access
- CVE-2025-34271 Nagios Log Server < 2024R2.0.2 Cluster Manager Credential Requests Sent Over Plaintext
- CVE-2025-34298 Nagios Log Server < 2024R1.3.2 Set Email Privilege Escalation
Sources
Also known as GHSA-pc79-p3cx-hcjp.