CVE-2026-13465

EL3 Stack Buffer Overflow in FCS HKDF Request

State: Published
Severity: 8.3 High
Published: Sep 24, 2026
Updated: Sep 24, 2026
Reserved: Jun 26, 2026

Description

Stack-based buffer overflow vulnerability in Altera Trusted Firmware on HPS allows Exploitation of Improperly Configured or Implemented Memory Protections.

This issue affects Trusted Firmware: through socfpga_v2.14.0.

Scores

CVSS	Score	Vector	Source
4.0	8.3 High	CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H	Altera
3.1	8.1 High	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:H/A:H	Altera

Weaknesses

CWE-121 Stack-based buffer overflow

Affected Products

Product	Versions
Trusted FirmwareAltera	socfpga_v2.14.0 and earlierAffected

References

https://www.altera.com/product-security/advisory/asa-0006

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