CVE-2026-62647

HIGH

A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used to generate security-relevant values (such as session identifiers used for authenticat...

Affects 0 products across 1 vendor.

CVSS 3.17.4
CVSS v49.3
EPSS0.6%
Percentile45th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, high complexity, no authentication required, no user interaction needed, impact contained to the vulnerable component, full confidentiality impact, full integrity impact, no availability impact.
CWE Weakness Definitions
CWE-20: Improper Input Validation

Software does not validate or incorrectly validates input, allowing attackers to craft data processed in unintended ways.

Related Attack Patterns (CAPEC)
CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
via CWE-20
CAPEC-7 Blind SQL Injection
via CWE-20
CAPEC-8 Buffer Overflow in an API Call
via CWE-20
CAPEC-9 Buffer Overflow in Local Command-Line Utilities
via CWE-20
CAPEC-10 Buffer Overflow via Environment Variables
via CWE-20
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Mapping is CWE-to-CAPEC per MITRE CAPEC 3.9.

◆ AI Analysis — automated analysis, not human-reviewed

A high severity vulnerability (CVE-2026-62647) affects the target system. A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used to generate security-relevant values (such as session identifiers used for authentication purposes) that is not initialized with a True Ran...

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Frequently Asked Questions
What is CVE-2026-62647?
A high severity vulnerability (CVE-2026-62647) affects the target system. A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used to generate security-relevant values (such as session identifiers used for authentication purposes) that is not initialized with a True Ran...
What is the CVSS score for CVE-2026-62647?
CVE-2026-62647 has CVSS 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS: 0.6%.
Is CVE-2026-62647 actively exploited?
No confirmed active exploitation of CVE-2026-62647 as of 2026-09-25.
How do I remediate CVE-2026-62647?
Apply vendor patches for CVE-2026-62647. Monitor Siemens advisories.
What systems are affected by CVE-2026-62647?
CVE-2026-62647 affects: Siemens.
Vulnerability Details
CVE IDCVE-2026-62647
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published2026-09-08
Last Modified2026-09-15
ICS Relevance55%
Weakness (CWE)
Improper Input Validation
SourceNVD
Official Description

A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). A random number generator is used to generate security-relevant values (such as session identifiers used for authentication purposes) that is not initialized with a True Random Number Generator (TRNG), resulting in a predictable sequence of generated values. This could allow an unauthenticated remote attacker to more easily predict the generated values and impersonate a legitimate authenticated user, potentially gaining unauthorized access to the device.

Source: NIST NVD / MITRE CVE Database

Affected Products
VendorProductFixed Version
Siemens &mdash; —
Remediation

No patch URL on record. Monitor vendor security advisories directly.

Threat Intelligence
● Threat Intelligence Validated: September 2026 | Threat Age: 20 Days
CISA KEVNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
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