CVE-2025-56301

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 48.2% of scored records. A rank, not a probability.

NVD base score

7.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-09-30 00:00Z11 MO AGO

Last updated

2025-10-01 19:53Z11 MO AGO

Reserved

2025-08-16

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses

• CWE-1281Sequence of Processor Instructions Leads to Unexpected BehaviorBase

Data version

5.1

Document digest

148932ed0d07c8b1e4355d867281c4d1b8b74238efc07a528271a53d044ad986

• lf-riscv.atlassian.nethttps://lf-riscv.atlassian.net/wiki/spaces/HOME/pages/16154769/RISC-V+Technical+Specifications#ISA-Specifications
• github.comhttps://github.com/chipsalliance/rocket-chip
• github.comhttps://github.com/chipsalliance/rocket-chip/blob/master/src/main/scala/rocket/CSR.scala
• github.comhttps://github.com/chipsalliance/rocket-chip/blob/f517abbf41abb65cea37421d3559f9739efd00a9/src/main/scala/rocket/CSR.scala
• github.comhttps://github.com/heyfenny/Vulnerability_disclosure/blob/main/RISCV/Rocket-chip/CVE-2025-56301/details.md