VulnerabilityPublished 29 Aug 2025

CVE-2025-9654: AiondaDotCom mcp-ssh · Command Injection

Affects AiondaDotCom mcp-sshSource CVE Database V5

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 08:30 UTC

CVSS 4.0 base score

5.3Medium

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

EPSS: 1.1% chance of exploitation in 30 days – higher than 67% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

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

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: Low
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

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: Low: The attacker requires privileges that provide basic capabilities that are typically limited to settings and resources owned by a single low-privileged user. Alternatively, an attacker with Low privileges has the ability to access only non-sensitive resources.
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.

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 29 Aug 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

Affected software

Product	Affected	Fixed in
AiondaDotCom mcp-ssh	Affected =1.0.0 =1.0.1 =1.0.2 =1.0.3	Fixed in–

AI-suggested

1. Immediate upgrade of AiondaDotCom mcp-ssh to version 1.0.4 or later (including 1.1.0) to apply the official patch addressing the command injection vulnerability. 2. Conduct an inventory to identify all instances of mcp-ssh within the organization, including development, testing, and production environments, to ensure no affected versions remain in use. 3. Implement network segmentation and firewall rules to restrict access to mcp-ssh services, limiting exposure to trusted IP addresses and reducing the attack surface. 4. Enable and monitor detailed logging on mcp-ssh servers to detect suspicious command execution attempts or anomalous activities indicative of exploitation attempts. 5. Employ intrusion detection and prevention systems (IDS/IPS) with updated signatures to detect potential exploitation attempts targeting this vulnerability. 6. Review and enforce the principle of least privilege for the mcp-ssh service account to minimize the impact of a successful command injection attack. 7. Conduct regular vulnerability scanning and penetration testing to verify the effectiveness of applied patches and security controls.

Description

A security flaw has been discovered in AiondaDotCom mcp-ssh up to 1.0.3. Affected by this issue is some unknown functionality of the file server-simple.mjs. Performing manipulation results in command injection. The attack can be initiated remotely. Upgrading to version 1.0.4 and 1.1.0 can resolve this issue. The patch is named cd2566a948b696501abfa6c6b03462cac5fb43d8. It is advisable to upgrade the affected component.

Impact

For European organizations using AiondaDotCom mcp-ssh versions 1.0.0 to 1.0.3, this vulnerability poses a tangible risk of remote command execution, which could compromise system confidentiality, integrity, and availability. Organizations in sectors with critical infrastructure, such as finance, healthcare, and government, could face significant operational disruptions or data breaches if exploited. The medium severity rating reflects that while the impact on confidentiality, integrity, and availability is low to moderate, the ease of exploitation without authentication and user interaction increases the threat level. Attackers could leverage this vulnerability to pivot within networks, escalate privileges, or deploy malware. The lack of known exploits in the wild currently reduces immediate risk, but the availability of patches and public disclosure means attackers may develop exploits in the near future. European organizations with internet-facing deployments of mcp-ssh or those using it in internal network segments should consider this a priority for patching to prevent potential exploitation.

Summary

CVE-2025-9654 is a command injection vulnerability identified in the AiondaDotCom mcp-ssh product, specifically affecting versions 1.0.0 through 1.0.3. The vulnerability resides in an unspecified functionality within the file server-simple.mjs component. Command injection vulnerabilities allow an attacker to execute arbitrary commands on the underlying operating system by manipulating input parameters that are improperly sanitized or validated. In this case, the attack can be initiated remotely without requiring user interaction or authentication, which significantly increases the risk profile. The vulnerability has a CVSS 4.0 base score of 5.3, categorized as medium severity. The vector metrics indicate network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:L), no user interaction (UI:N), and low impact on confidentiality, integrity, and availability (VC:L, VI:L, VA:L). The scope remains unchanged (S:N), and no security requirements are affected (SC:N, SI:N, SA:N). The vendor has released patches in versions 1.0.4 and 1.1.0, with the patch identified by commit cd2566a948b696501abfa6c6b03462cac5fb43d8. No known exploits are currently reported in the wild. Given the nature of the vulnerability, an attacker could potentially execute arbitrary system commands remotely, leading to unauthorized access, data leakage, or disruption of services depending on the privileges of the mcp-ssh process and the environment in which it operates.

References

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