CVE-2021-35465

LOW
3.4
CVSS Score
Published: August 23, 2021 at 12:44 PM UTC
Updated: June 17, 2026 at 03:57 AM UTC
8 products affected across 1 vendorCortex M33 FirmwareChina Star MC1 FirmwareCortex M55 Firmware

Using N/A by N/A?

Get instant alerts when new vulnerabilities affect N/A - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
LOW3.4
Exploit prediction
EPSS 0.3%

Description

Certain Arm products before 2021-08-23 do not properly consider the effect of exceptions on a VLLDM instruction. A Non-secure handler may have read or write access to part of a Secure context. This affects Arm Cortex-M33 r0p0 through r1p0, Arm Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration).

Affected

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

All versions
arm-china-star-mc1 (same device)
r0p0 ≤ v ≤ r1p0
arm-cortex-m33 (same device)
arm-cortex-m35p (same device)
r0p0 ≤ v ≤ r1p0
arm-cortex-m55 (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

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

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card