Vulnerability · Published Aug 13, 2026 · Assigned by Silabs

CVE-2026-65933BT122 malformed packet with increased length field causes memory leak

Medium 5.3

In plain English

A medium-severity security flaw in BT122 from silabs.com. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium
Exploit odds (30 days)0.3%top 83.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A malformed Bluetooth connection request message can cause the BT122 to leak potentially sensitive information. See vulnerability B-E4 in the related paper below.

Affected products (as reported)

VendorProductVersions
silabs.com BT122 0 – through 1.4.0

Weakness: CWE-126 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References