cMT3072XH: External Control of Assumed-Immutable Web Parameter
CVE-2025-14750 is a high-severity external control of assumed-immutable web parameter vulnerability in cMT3072XH from Weintek, with a CVSS 4.0 base score of 8.7 out of 10. It can be exploited remotely over the network by an attacker with a low-privileged account, without any action from a user. The record lists version 20241112 as the first without the flaw, so updating cMT3072XH to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.35% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update cMT3072XH to 20241112 or a later version.
- Update cMT3072XH(T) to 20241112 or a later version.
- Update cMT-SVRX-820 to 20240919 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Weintek | cMT3072XH | 20200630 up to, but not including, 20241112 | 20241112 |
| Weintek | cMT3072XH(T) | 20200630 up to, but not including, 20241112 | 20241112 |
| Weintek | cMT-SVRX-820 | 20220413 up to, but not including, 20240919 | 20240919 |
| Weintek | cMT-CTRL01 | 20230308 up to, but not including, 20250827 | 20250827 |
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.
- Attack requirements
- NoneThe attack does not depend on a particular deployment or configuration.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Confidentiality (vulnerable system)
- HighSerious loss of confidentiality on the vulnerable system.
- Integrity (vulnerable system)
- HighSerious loss of integrity on the vulnerable system.
- Availability (vulnerable system)
- HighSerious loss of availability on the vulnerable system.
- Confidentiality (other systems)
- NoneNo loss of confidentiality on systems beyond the vulnerable one.
- Integrity (other systems)
- NoneNo loss of integrity on systems beyond the vulnerable one.
- Availability (other systems)
- NoneNo loss of availability on systems beyond the vulnerable one.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. Scored by CNA (hq.dhs.gov).
Official description
The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable. A low-privileged user can modify the parameters and potentially manipulate account-level privileges.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: External Control of Assumed-Immutable Web Parameter
The web application does not sufficiently verify inputs that are assumed to be immutable but are actually externally controllable, such as hidden form fields.
How developers prevent this class of flaw
- Inputs should be decoded and canonicalized to the application's current internal representation before being validated (CWE-180). Make sure that the application does not decode the same input twice (CWE-174). Such errors could be used to bypass allowlist validation schemes by introducing dangerous inputs after they have been checked.
More External Control of Assumed-Immutable Web Parameter vulnerabilities (CWE-472)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in cMT3072XH
- 8.7 High severity
Recent External Control of Assumed-Immutable Web Parameter vulnerabilities
- 9.4 Critical severity
- 8.8 High severity
- 7.5 High severity
- 8.8 High severity
- 8.8 High severity
- 5.3 Medium severity
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