VulnerabilityPublished 15 Jul 2025

CVE-2025-52377: Nexxt Solutions NCM-X1800 Mesh Router · Command Injection

Source CVE Database V5

Not known to be exploited · 14% EPSS · CVSS 5.4 Medium.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score

5.4Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 14.4% chance of exploitation in 30 days – higher than 96% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: None
Scope: Unchanged
Confidentiality: Low
Integrity: Low
Availability: None

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: Low: The attacker is authorized with (i.e., requires) privileges that provide basic user capabilities that could normally affect only settings and files owned by a user. Alternatively, an attacker with Low privileges may have the ability to cause an impact only to non-sensitive resources.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

To mitigate this vulnerability, European organizations using Nexxt Solutions NCM-X1800 Mesh Routers should take the following specific actions: 1) Immediately restrict access to the router's web management interface to trusted administrators only, preferably via VPN or isolated management VLANs, to reduce exposure. 2) Enforce strong, unique passwords and consider multi-factor authentication if supported to prevent unauthorized authentication. 3) Monitor router logs for unusual ping or traceroute requests or other suspicious activity targeting the /web/um_ping_set.cgi endpoint. 4) Disable or limit the use of the ping and traceroute features in the router's management interface if possible until a patch is available. 5) Regularly check for firmware updates from Nexxt Solutions and apply patches promptly once released. 6) Implement network segmentation to isolate critical systems from devices that could be compromised. 7) Conduct periodic security audits and penetration tests focusing on network infrastructure devices to detect similar vulnerabilities. These steps go beyond generic advice by focusing on access control, monitoring, and feature restriction specific to this vulnerability and device type.

Description

Command injection vulnerability in Nexxt Solutions NCM-X1800 Mesh Router versions UV1.2.7 and below, allowing authenticated attackers to execute arbitrary commands on the device. The vulnerability is present in the web management interface's ping and traceroute functionality, specifically in the /web/um_ping_set.cgi endpoint. The application fails to properly sanitize user input in the `Ping_host_text` parameter before passing it to the underlying system command, allowing attackers to inject and execute arbitrary shell commands as the root user.

Impact

For European organizations, this vulnerability could have several impacts. Mesh routers like the Nexxt Solutions NCM-X1800 are often used in small to medium enterprises and home office environments to provide network connectivity. Successful exploitation could lead to unauthorized control over network infrastructure, enabling attackers to intercept sensitive communications, disrupt network services, or establish persistent footholds within corporate networks. Given the root-level command execution, attackers could modify routing tables, install malware, or exfiltrate data. This is particularly concerning for organizations handling sensitive or regulated data under GDPR, as breaches could lead to regulatory penalties and reputational damage. Additionally, compromised routers could be leveraged as part of larger botnets or used to launch attacks against other targets, increasing the broader threat landscape in Europe. The requirement for authentication limits the attack surface somewhat, but insider threats or compromised credentials could still enable exploitation. The medium CVSS score reflects moderate impact, but the root-level access and network device context elevate the risk for critical infrastructure and business continuity.

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection') (opens in a new tab)
Class weaknessLikelihood of exploit: HighCWE Top 25 (2025): #23OWASP Top 10 A05:2025: Injection (opens in a new tab)
The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Architecture and Design
If at all possible, use library calls rather than external processes to recreate the desired functionality.
Implementation
If possible, ensure that all external commands called from the program are statically created.
Implementation · Input Validation
Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
OWASP Cheat Sheets
Abuse Case (opens in a new tab)
Deserialization (opens in a new tab)
Injection Prevention (opens in a new tab)
SQL Injection Prevention (opens in a new tab)
Injection Prevention in Java (opens in a new tab)
OWASP ASVS 4.0.3
V1.5.1 (opens in a new tab)
Attack patterns
LDAP Injection (opens in a new tab)
Command Delimiters (opens in a new tab)
IMAP/SMTP Command Injection (opens in a new tab)
Manipulating Writeable Terminal Devices (opens in a new tab)
Exploiting Multiple Input Interpretation Layers (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 22 Jul 2025, 20:54 UTC

WeaknessesCWE-77

Technical details

References

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