Vulnerability · Published Nov 19, 2025 · Assigned by Nozomi
CVE-2025-12056Out-of-bounds Read in Shelly Pro 3EM
High 8.3
In plain English
A high-severity out-of-bounds read in Pro 3EM from Shelly. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 4.0)8.3High
Exploit odds (30 days)0.2%top 90.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Out-of-bounds Read in Shelly Pro 3EM (before v1.4.4) allows Overread Buffers.
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
References
- https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-12056 third-party-advisory
- https://www.cisa.gov/news-events/ics-advisories/icsa-25-322-03 government-resource, technical-description