Write Access Vulnerability in Arm Processors and Their Series
CVE-2025-10263

9.1CRITICAL

Key Information:

Vendor

Arm

Vendor
CVE Published:
9 June 2026

What is CVE-2025-10263?

This vulnerability in Arm processors allows unauthorized write access to resources owned by higher exception levels, potentially enabling compromise of system integrity and security. The affected processor series include various models within the Cortex and Neoverse lines, broadening the attack surface for malicious activities. Users and organizations utilizing affected products are advised to apply appropriate mitigations and stay informed about updates from Arm.

Affected Version(s)

C1-Premium 0

C1-Ultra 0

Cortex-A710 0

References

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.