IE-SW-VL05M-5TX: Use of Weak Hash
CVE-2025-41652 is a critical-severity use of weak hash vulnerability in IE-SW-VL05M-5TX from Weidmueller, 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 3.6.32 as the first without the flaw, so updating IE-SW-VL05M-5TX to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.49% chance of exploitation within 30 days, which is low compared with other CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update IE-SW-VL05M-5TX to 3.6.32 or a later version.
- Update IE-SW-VL05MT-5TX to 3.6.32 or a later version.
- Update IE-SW-VL08MT-8TX to 3.6.32 or a later version.
- 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 |
|---|---|---|---|
| Weidmueller | IE-SW-VL05M-5TX | before 3.6.32 | 3.6.32 |
| Weidmueller | IE-SW-VL05MT-5TX | before 3.6.32 | 3.6.32 |
| Weidmueller | IE-SW-VL08MT-8TX | before 3.6.32 | 3.6.32 |
| Weidmueller | IE-SW-VL08MT-5TX-1SC-2SCS | before 3.5.36 | 3.5.36 |
| Weidmueller | IE-SW-VL08MT-6TX-2SC | before 3.5.36 | 3.5.36 |
| Weidmueller | IE-SW-VL08MT-6TX-2ST | before 3.5.36 | 3.5.36 |
| Weidmueller | IE-SW-VL08MT-6TX-2SCS | before 3.5.36 | 3.5.36 |
| Weidmueller | IE-SW-PL10M-3GT-7TX | before 3.3.34 | 3.3.34 |
| Weidmueller | IE-SW-PL10MT-3GT-7TX | before 3.3.34 | 3.3.34 |
| Weidmueller | IE-SW-PL16M-16TX | before 3.4.32 | 3.4.32 |
| Weidmueller | IE-SW-PL16MT-16TX | before 3.4.32 | 3.4.32 |
| Weidmueller | IE-SW-PL18M-2GC-16TX | before 3.4.40 | 3.4.40 |
| Weidmueller | IE-SW-PL18MT-2GC-16TX | before 3.4.40 | 3.4.40 |
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
- 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 CNA (cert.vde.com).
Official description
The devices are vulnerable to an authentication bypass due to flaws in the authorization mechanism. An unauthenticated remote attacker could exploit this weakness by performing brute-force attacks to guess valid credentials or by using MD5 collision techniques to forge authentication hashes, potentially compromising the device.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Use of Weak Hash
The product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack).
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 references
Other vulnerabilities in IE-SW-VL05M-5TX
- 7.5 High severity
- 9.8 Critical severity
- 7.5 High severity
- 7.5 High severity
Recent Use of Weak Hash vulnerabilities
- 7.5 High severity
- 9.8 Critical severity
- 9.3 Critical severity
- 8.7 High severity
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