Vulnerability · Published Sep 24, 2026 · Assigned by Altera
CVE-2026-13466Unit Confusion in VAB Authentication
High 8.1
In plain English
A high-severity security flaw in Trusted Firmware from Altera. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.1%top 98.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Incorrect calculation of buffer size vulnerability in Altera Trusted Firmware on HPS allows Overflow Buffers. This issue affects Trusted Firmware: through socfpga_v2.14.0.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Altera | Trusted Firmware | 0 – through socfpga_v2.14.0 |
Weakness: CWE-131 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H