DI-7100G C1: Improper Neutralization of Special Elements in Output Used by a Downstream Component
CVE-2025-11335 is a high-severity improper neutralization of special elements in output used by a downstream component vulnerability in DI-7100G C1 from D-Link, with a CVSS 3.1 base score of 7.2 out of 10. It can be exploited remotely over the network by an attacker with administrator privileges, without any action from a user. Affected DI-7100G C1 versions: 20250928. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 4.22% chance of exploitation within 30 days, which is in the top 8.85% of all scored CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of DI-7100G C1 you run against the affected versions below, and install the vendor's latest release.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| D-Link | DI-7100G C1 | 20250928 | Not stated |
| D-Link | Di-7100g C1 Firmware | 2025-09-28 | 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
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- HighAdministrator-level access is required first.
- 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:H/UI:N/S:U/C:H/I:H/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 2.0 | Low | CNA (vuldb.com) |
| CVSS 3.1 | 4.7 | Medium | CNA (vuldb.com) |
| CVSS 3.1 | 7.2 | High | NVD |
| CVSS 2.0 | 5.8 | Medium | CNA (vuldb.com) |
Official description
A weakness has been identified in D-Link DI-7100G C1 up to 20250928. Affected by this vulnerability is the function sub_46409C of the file /msp_info.htm?flag=qos of the component jhttpd. This manipulation of the argument iface causes command injection. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be exploited.
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: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Third-party and government advisories
- vuldb.com/?id.327218Third Party Advisory, VDB Entry
- vuldb.com/?submit.664597Third Party Advisory, VDB Entry
Other references
- vuldb.com/?ctiid.327218Permissions Required, VDB Entry
- dlink.com/Product
- yuque.com/jh0ng/vmpda6/fpqlhpkb0orgseavPermissions Required
- yuque.com/jh0ng/vmpda6/fpqlhpkb0orgseav#DOhrVPermissions Required
Other vulnerabilities in DI-7100G C1
- 8.8 High severity
- 8.8 High severity
- 8.8 High severity
- 9.8 Critical severity
Recent Improper Neutralization of Special Elements in Output Used by a Downstream Component vulnerabilities
- 9.8 Critical severity
- 9.8 Critical severity
- 7.2 High severity
- 8.8 High severity
- 9.8 Critical severity
- 8.8 High severity
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