CVE-2025-11141VulnerabilityPublished 29 Sep 2025

CVE-2025-11141: Ruijie NBR2100G-E · OS Command Injection

Affects Ruijie NBR2100G-ESource CVE Database V5

Not known to be exploited · CVSS 5.1 Medium.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 4.0 base score

5.1Medium

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

EPSS: 3.7% chance of exploitation in 30 days – higher than 89% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: High
User Interaction: None
Vulnerable system confidentiality: Low
Vulnerable system integrity: Low
Vulnerable system availability: Low
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

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

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, 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: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction: None: The vulnerable system can be exploited without interaction from any human user, other than the attacker.
Vulnerable system 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 Vulnerable System.
Vulnerable system 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 to the Vulnerable System.
Vulnerable system availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the Vulnerable System are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 29 Sep 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 2026-10-25.

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

Affected software

Product	Affected	Fixed in
Ruijie NBR2100G-E	Affected =20250919	Fixed in–

AI-suggested

2) Monitor network traffic for unusual or suspicious requests targeting the /itbox_pi/branch_passw.php?a=list endpoint, especially those containing suspicious 'city' parameter values or other unexpected inputs. 3) Employ intrusion detection/prevention systems (IDS/IPS) with custom signatures to detect and block command injection attempts against this endpoint. 4) Conduct thorough audits of device configurations and logs to identify any signs of compromise or unauthorized command execution. 5) Where possible, replace or upgrade affected devices with alternative hardware or firmware versions not vulnerable to this issue. 6) Implement network segmentation to limit the impact of a compromised device and reduce lateral movement opportunities. 7) Engage with Ruijie support channels persistently to obtain updates or patches and subscribe to vulnerability advisories for timely information. These steps go beyond generic advice by focusing on network-level controls, active monitoring, and device management practices tailored to this specific vulnerability.

Description

A security flaw has been discovered in Ruijie NBR2100G-E up to 20250919. Affected by this issue is the function listAction of the file /itbox_pi/branch_passw.php?a=list. Performing manipulation of the argument city results in os command injection. The attack is possible to be carried out remotely. The exploit has been released to the public and may be exploited. Other parameters might be affected as well. The vendor was contacted early about this disclosure but did not respond in any way.

Impact

For European organizations, this vulnerability poses a significant risk particularly to those using Ruijie NBR2100G-E devices in their network infrastructure. Successful exploitation could allow attackers to gain unauthorized control over network devices, potentially leading to network disruption, interception or alteration of network traffic, and lateral movement within corporate networks. This could compromise sensitive data and critical services, especially in sectors relying heavily on network availability and integrity such as finance, telecommunications, and government. The medium severity rating suggests that while the impact is not catastrophic, it is sufficient to warrant immediate attention due to the remote exploitability and public availability of exploit code. The lack of vendor patches means organizations must rely on alternative mitigations to protect their infrastructure. Given the strategic importance of network devices as gateways and control points, exploitation could facilitate broader attacks or espionage campaigns targeting European entities.

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 30 Sep 2025, 00:12 UTC

Technical details

References

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