Vulnerability · Published Sep 8, 2026 · Assigned by siemens
CVE-2026-62645
Critical 9.8
In plain English
A critical-severity missing authentication in Reyrolle 7SR5 from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.6%top 48.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). Information is exposed through the web interface that can be used to calculate the current and past session ID numbers. This could allow an attacker to bypass the authentication and gain unauthorized access to the device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | Reyrolle 7SR5 | 0 – before V2.70 |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H