Ir315 Firmware: Improper Neutralization of Special Elements used in a Command
CVE-2026-38703 is a critical-severity improper neutralization of special elements used in a command vulnerability in Ir315 Firmware from Inhandnetworks, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 1.0.121 as the first without the flaw, so updating Ir315 Firmware to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 1.24% chance of exploitation within 30 days, higher than 70% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update Ir315 Firmware to 1.0.121 or a later version.
- Update Ir302 Firmware to 3.5.112 or a later version.
- Update Ir615 Firmware to 1.0.121 or a later version.
- Read the advisory on inhand.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Inhandnetworks | Ir315 Firmware | before 1.0.121 | 1.0.121 |
| Inhandnetworks | Ir302 Firmware | before 3.5.112 | 3.5.112 |
| Inhandnetworks | Ir615 Firmware | before 1.0.121 | 1.0.121 |
| Inhandnetworks | Ir305 Firmware | before 1.0.121 | 1.0.121 |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
A command injection vulnerability exists in the ZeroTier VPN feature of InHand Networks IR302 firmware V3.5.108, IR305 firmware V1.0.118, IR315 firmware V1.0.118, IR615 firmware V1.0.118, and earlier versions. Attackers can exploit this vulnerability to obtain ROOT privileges on remote target devices.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements used in a Command
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.
How developers prevent this class of flaw
- If at all possible, use library calls rather than external processes to recreate the desired functionality.
- If possible, ensure that all external commands called from the program are statically created.
- Run time: Run time policy enforcement may be used in an allowlist fashion to prevent use of any non-sanctioned commands.
More Improper Neutralization of Special Elements used in a Command vulnerabilities (CWE-77)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Ir315 Firmware
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Improper Neutralization of Special Elements used in a Command vulnerabilities
- 8.8 High severity
- 7.2 High severity
- 8.1 High severity
- 8.8 High severity
- 7.8 High severity
- 9.8 Critical severity
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