Magic NX15: Improper Neutralization of Special Elements in Output Used by a Downstream Component
CVE-2025-3546 is a high-severity improper neutralization of special elements in output used by a downstream component vulnerability in Magic NX15 from H3C, with a CVSS 3.1 base score of 8.0 out of 10. It can be exploited from the same local network by an attacker with a low-privileged account, without any action from a user. Affected Magic NX15 versions: V100R014. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 1.6% chance of exploitation within 30 days, higher than 76% of scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Magic NX15 you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on zhiliao.h3c.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| H3C | Magic NX15 | V100R014 | Not stated |
| H3C | Magic NX30 Pro | V100R014 | Not stated |
| H3C | Magic NX400 | V100R014 | Not stated |
| H3C | Magic R3010 | V100R014 | Not stated |
| H3C | Magic BE18000 | V100R014 | Not stated |
| H3C | Magic Nx15 Firmware | 100r014 and earlier | Not stated |
| H3C | Magic Nx30 Pro Firmware | 100r014 and earlier | Not stated |
| H3C | Magic Nx400 Firmware | 100r014 and earlier | Not stated |
| H3C | Magic R3010 Firmware | 100r014 and earlier | Not stated |
| H3C | Magic Be18000 Firmware | 100r014 and earlier | Not stated |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- AdjacentThe attacker must be on the same local network segment.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- 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:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (vuldb.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.6 | High | CNA (vuldb.com) |
| CVSS 3.1 | 8.0 | High | CNA (vuldb.com) |
| CVSS 2.0 | 7.7 | High | CNA (vuldb.com) |
Official description
A vulnerability was found in H3C Magic NX15, Magic NX30 Pro, Magic NX400, Magic R3010 and Magic BE18000 up to V100R014. It has been declared as critical. Affected by this vulnerability is the function FCGI_CheckStringIfContainsSemicolon of the file /api/wizard/getLanguage of the component HTTP POST Request Handler. The manipulation leads to command injection. The attack can only be done within the local network. The exploit has been disclosed to the public and may be used. It is recommended to upgrade the affected component.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Neutralization of Special Elements in Output Used by a Downstream Component
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.
How developers prevent this class of flaw
- Programming languages and supporting technologies might be chosen which are not subject to these issues.
- Utilize an appropriate mix of allowlist and denylist parsing to filter control-plane syntax from all input.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: poc, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Advisories
Third-party and government advisories
- vuldb.com/?id.304585Third Party Advisory, VDB Entry
- vuldb.com/?submit.524745Third Party Advisory, VDB Entry
Other references
- vuldb.com/?ctiid.304585Permissions Required, VDB Entry
- h3c.com/cn/Service/Document_Software/Software_Download/Consume_product/Product
Other vulnerabilities in Magic NX15
- 9.9 Critical severity
- 9.9 Critical severity
- 8.0 High severity
- 8.0 High severity
- 8.0 High severity
- 8.0 High severity
Recent Improper Neutralization of Special Elements in Output Used by a Downstream Component vulnerabilities
- 8.0 High severity
- 8.0 High severity
- 8.0 High severity
- 9.8 Critical severity
- 7.3 High severity
- 9.8 Critical severity
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