Critical severity · published Oct 23, 2026
CVE-2026-55981
Firmware verification vulnerability
New
9.6
CVSS
0.2%
EPSS
No
On KEV
Description
A firmware verification vulnerability in Creative Sound Blaster Katana could allow an attacker to modify a legitimate firmware image and upload the modified firmware to an affected device.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 14% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
Affected product
CS
Creative Sound Blaster Katana V2, V2X, SE
Creative Labs
More from Creative Sound Blaster Katana V2, V2X, SE
4.3
CVE-2026-63243
Firmware verification vulnerability