CVE-2025-12056 Out-of-bounds Read in Shelly Pro 3EM
An out-of-bounds read vulnerability in Shelly Pro 3EM allows attackers to overread buffers, potentially leading to information disclosure or service disruption.
- 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-2025-12056?
CVE-2025-12056 is a high-severity memory corruption vulnerability in Shelly Pro 3EM, published on 19 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Out-of-bounds Read in Shelly Pro 3EM (before v1.4.4) allows Overread Buffers.
Weakness: CWE-125
Which versions are affected by CVE-2025-12056?
How do I fix CVE-2025-12056?
No fix has been published for CVE-2025-12056 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-2025-12056 being exploited?
There is no known exploitation of CVE-2025-12056 in the wild and no public exploit code.
Sources
Also known as GHSA-2qmw-g869-r668.