Cyber Resilience

CVE-2021-35465

Low

Published: 23 August 2021

Published
23 August 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 3.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0012 30.5th percentile
Risk Priority 7 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-35465 is a low-severity an unspecified weakness vulnerability in Arm Cortex-M33 Firmware. Its CVSS base score is 3.4 (Low).

Operationally, ranked at the 30.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

more

Cortex-M35P r0, Arm Cortex-M55 r0p0 through r1p0, and Arm China STAR-MC1 (in the STAR SE configuration).

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

arm
cortex-m33 firmware
r0p0 — r1p0
arm
cortex-m35p firmware
r0
arm
cortex-m55 firmware
r0p0 — r1p0
arm
china star-mc1 firmware
all versions

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References