CVE-2026-62653: CWE-787: Out-of-bounds Write in Siemens Reyrolle 7SR5
A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The input received over a proprietary communication protocol that is exposed when the device is placed into a special firmware-update mode is not properly validated, resulting in a memory corruption condition. This could allow an unauthenticated attacker with physical access to the device to cause a crash and potentially execute arbitrary code on the device.
AI Analysis
Technical Summary
This vulnerability (CWE-787) affects Siemens Reyrolle 7SR5 devices with firmware versions earlier than 2.70. When the device is placed into a special firmware-update mode, it exposes a proprietary communication protocol that does not properly validate input data. This improper validation leads to a memory corruption condition (out-of-bounds write), which could be exploited by an unauthenticated attacker with physical access to cause a denial of service (crash) or potentially execute arbitrary code on the device.
Potential Impact
Successful exploitation could allow an unauthenticated attacker with physical access to the device to cause a crash, resulting in denial of service, or potentially execute arbitrary code, leading to full compromise of the affected device. The vulnerability impacts confidentiality, integrity, and availability of the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published at this time. Until a patch is available, restrict physical access to the device and avoid placing the device into firmware-update mode unless necessary and secure.
CVE-2026-62653: CWE-787: Out-of-bounds Write in Siemens Reyrolle 7SR5
Description
A vulnerability has been identified in Reyrolle 7SR5 (All versions < V2.70). The input received over a proprietary communication protocol that is exposed when the device is placed into a special firmware-update mode is not properly validated, resulting in a memory corruption condition. This could allow an unauthenticated attacker with physical access to the device to cause a crash and potentially execute arbitrary code on the device.
CVSS v3.1
Score 6.8medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-787) affects Siemens Reyrolle 7SR5 devices with firmware versions earlier than 2.70. When the device is placed into a special firmware-update mode, it exposes a proprietary communication protocol that does not properly validate input data. This improper validation leads to a memory corruption condition (out-of-bounds write), which could be exploited by an unauthenticated attacker with physical access to cause a denial of service (crash) or potentially execute arbitrary code on the device.
Potential Impact
Successful exploitation could allow an unauthenticated attacker with physical access to the device to cause a crash, resulting in denial of service, or potentially execute arbitrary code, leading to full compromise of the affected device. The vulnerability impacts confidentiality, integrity, and availability of the device.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or temporary mitigation has been published at this time. Until a patch is available, restrict physical access to the device and avoid placing the device into firmware-update mode unless necessary and secure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- siemens
- Date Reserved
- 2026-07-14T16:24:23.430Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9fc956acd9273b49571db0
Added to database: 09/08/2026, 08:37:42 UTC
Last enriched: 09/08/2026, 08:52:48 UTC
Last updated: 09/09/2026, 01:51:59 UTC
Views: 16
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