CVE-2025-8774

riscv-boom SonicBOOM L1 Data Cache timing discrepancy

MEDIUM
4.7
CVSS Score
Published: August 9, 2025 at 08:32 PM UTC
Updated: June 17, 2026 at 10:07 AM UTC
2 products affected across 2 vendorsRisvc BoomCore Risvc Boom

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Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

A vulnerability has been found in riscv-boom SonicBOOM up to 2.2.3 and classified as problematic. Affected by this vulnerability is an unknown functionality of the component L1 Data Cache Handler. The manipulation leads to observable timing discrepancy. Local access is required to approach this attack. The complexity of an attack is rather high. The exploitation appears to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-203CWE-208

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