Critical severity · published Oct 4, 2023
CVE-2023-41094
Touchlink authentication bypass due to packets processed after timeout or out of range in Ember ZNet
9.8
CVSS
0.7%
EPSS
No
On KEV
Description
TouchLink packets processed after timeout or out of range due to Operation on a Resource after Expiration and Missing Release of Resource after Effective Lifetime may allow a device to be added outside of valid TouchLink range or pairing duration
This issue affects Ember ZNet 7.1.x from 7.1.3 through 7.1.5; 7.2.x from 7.2.0 through 7.2.3; Version 7.3 and later are unaffected
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EZ
Ember ZNet · Silicon Labs
7.1.3 through 7.1.5; 7.2.0 through 7.2.3 · source: vendor
EM
Emberznet · Silabs
7.1.3 through 7.1.5; 7.2.0 through 7.2.3 · source: NVD