Out-of-bounds Read in Shelly Pro 4pm

CVE-2023-33383

Shelly 4PM Pro four-channel smart switch 0.11.0 allows an attacker to trigger a BLE out of bounds read fault condition that results in a device reload.

Vulnerability class: Buffer Overflow

EPSS: 0.047 (91.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2023-33383?
CVE-2023-33383 is a medium-severity vulnerability in Shelly Pro 4pm, classified under Out-of-bounds Read. CVSS score: 5.3/10. Published 2023-08-02.
How severe is CVE-2023-33383?
Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2023-33383 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.