Reyrolle 7SR5: Authentication Bypass Using an Alternate Path or Channel
CVE-2026-62650 is a high-severity authentication bypass using an alternate path or channel vulnerability in Reyrolle 7SR5 from Siemens, with a CVSS 3.1 base score of 8.8 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 V2.70 as the first without the flaw, so updating Reyrolle 7SR5 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.57% 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 Reyrolle 7SR5 to V2.70 or a later version.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Siemens | Reyrolle 7SR5 | before V2.70 | V2.70 |
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
- 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:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (siemens.com).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 8.7 | High | CNA (siemens.com) |
| CVSS 3.1 | 8.8 | High | CNA (siemens.com) |
Official description
A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). Server-side authorization checks in the web-based management interface are not properly enforced, allowing role-based access control (RBAC) restrictions to be bypassed through manipulation of request data. This could allow an authenticated, low-privileged remote attacker to escalate privileges to an administrative level.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Authentication Bypass Using an Alternate Path or Channel
The product requires authentication, but the product has an alternate path or channel that does not require authentication.
How developers prevent this class of flaw
- Funnel all access through a single choke point to simplify how users can access a resource. For every access, perform a check to determine if the user has permissions to access the resource.
More Authentication Bypass Using an Alternate Path or Channel vulnerabilities (CWE-288)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
References
Other references
Other vulnerabilities in Reyrolle 7SR5
- 7.5 High severity
- 7.5 High severity
- 7.4 High severity
- 7.4 High severity
- 9.8 Critical severity
- 7.5 High severity
Recent Authentication Bypass Using an Alternate Path or Channel vulnerabilities
- 7.8 High severity
- 8.1 High severity
- 7.5 High severity
- 7.5 High severity
- 8.1 High severity
- 9.8 Critical severity
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