CVE-2026-55981 PUBLISHED

Firmware verification vulnerability

Assigner: CSA
Reserved: 18.06.2026 Published: 23.10.2026 Updated: 23.10.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.6

Attack Vector	Adjacent Network	Scope	Changed
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Creative Labs
Product	Creative Sound Blaster Katana V2, V2X, SE
Versions	Default: unaffected Version 1.30.260813.1100 is affected

References

https://www.csa.gov.sg/alerts-and-advisories/alerts/al-2026-134/