CVE-2025-8875 in N-central
Summary
by MITRE • 08/14/2025
Deserialization of Untrusted Data vulnerability in N-able N-central allows Local Execution of Code.This issue affects N-central: before 2025.3.1.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 10/22/2025
The CVE-2025-8875 vulnerability represents a critical deserialization flaw in N-able N-central software that enables local code execution through untrusted data handling. This vulnerability specifically impacts versions prior to 2025.3.1 and stems from the application's improper validation of serialized data structures during processing. The flaw exists within the software's object deserialization mechanism where it fails to adequately verify the integrity and trustworthiness of incoming data before executing any operations based on that data. This type of vulnerability falls under the CWE-502 category, which specifically addresses deserialization of untrusted data as a security weakness that can lead to arbitrary code execution.
The technical implementation of this vulnerability allows an attacker with local access to craft malicious serialized objects that, when processed by the vulnerable N-central application, trigger unintended code execution. The deserialization process typically involves converting serialized data back into executable objects or code within the application's memory space. When this process lacks proper input validation and sanitization, attackers can inject malicious payloads that bypass normal security controls. The vulnerability's local execution requirement suggests that exploitation would need physical or authenticated access to the system, though this does not mitigate the severity of the potential impact.
From an operational perspective, this vulnerability poses significant risks to organizations relying on N-able N-central for network monitoring and management. The local code execution capability could enable attackers to escalate privileges, install backdoors, or exfiltrate sensitive data from the compromised system. The impact extends beyond immediate system compromise as the vulnerability could serve as a foothold for broader network infiltration. Security teams face challenges in detecting such attacks since legitimate administrative processes might legitimately perform deserialization operations, making malicious activity harder to distinguish from normal operations. This vulnerability aligns with ATT&CK technique T1059.007 for command and script interpreter, as successful exploitation would likely involve executing malicious commands through the deserialized objects.
Organizations should immediately implement mitigations including updating to N-able N-central version 2025.3.1 or later, which contains patches addressing this deserialization vulnerability. Additional protective measures include implementing strict access controls to limit local system access, monitoring for unusual deserialization activities, and applying network segmentation to reduce the potential impact of successful exploitation. Security configurations should enforce secure deserialization practices such as using whitelisting approaches for allowed object types and implementing proper input validation. The vulnerability also underscores the importance of regular security assessments and vulnerability management processes that can identify and remediate such issues before they can be exploited in production environments.