CVE-2026-62653 Memory corruption in Reyrolle 7SR5
An unauthenticated attacker with physical access can trigger memory corruption in firmware update mode, potentially causing crashes or arbitrary code execution.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-62653?
CVE-2026-62653 is a high-severity memory corruption vulnerability in Siemens Reyrolle 7SR5, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-787
Which versions are affected by CVE-2026-62653?
How do I fix CVE-2026-62653?
No fix has been published for CVE-2026-62653 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-62653 being exploited?
There is no known exploitation of CVE-2026-62653 in the wild and no public exploit code.
Sources
Also known as GHSA-wp7r-98f8-j5f3.