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URL: https://nvd.nist.gov/vuln/detail/CVE-2021-35465

⇱ NVD - CVE-2021-35465

  1. Vulnerabilities

CVE-2021-35465 Detail

Modified After Enrichment

This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.

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).


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://developer.arm.com/support/arm-security-updates CVE, MITRE Vendor Advisory 
https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability CVE, MITRE Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-Other Other 👁 cwe source acceptance level
NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found show changes

CVE Modified by MITRE 6/16/2026 11:57:31 PM

Action Type Old Value New Value
Added Affected 
[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}]

CVE Modified by CVE 11/21/2024 1:12:20 AM

Action Type Old Value New Value
Added Reference 
https://developer.arm.com/support/arm-security-updates
Added Reference 
https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability

CVE Modified by MITRE 5/14/2024 5:17:31 AM

Action Type Old Value New Value

CWE Remap by NIST 7/12/2022 1:42:04 PM

Action Type Old Value New Value
Changed CWE 
CWE-863



NVD-CWE-Other


Reanalysis by NIST 9/23/2021 8:20:35 AM

Action Type Old Value New Value
Changed CPE Configuration 
AND
 OR
 *cpe:2.3:o:arm:cortex-m35p_firmware:r0:*:*:*:*:*:*:*
 OR
 cpe:2.3:h:arm:cortex-35p:-:*:*:*:*:*:*:*


 
AND
 OR
 *cpe:2.3:o:arm:cortex-m35p_firmware:r0:*:*:*:*:*:*:*
 OR
 cpe:2.3:h:arm:cortex-m35p:-:*:*:*:*:*:*:*

CPE Deprecation Remap by NIST 9/22/2021 8:56:05 AM

Action Type Old Value New Value
Changed CPE Configuration 
OR
 *cpe:2.3:o:arm:cortex-35p_firmware:r0:*:*:*:*:*:*:*


 
OR
 *cpe:2.3:o:arm:cortex-m35p_firmware:r0:*:*:*:*:*:*:*

Initial Analysis by NIST 8/27/2021 8:42:30 PM

Action Type Old Value New Value
Added CVSS V3.1 
NIST AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Added CVSS V2 
NIST (AV:L/AC:L/Au:N/C:P/I:P/A:N)
Added CWE 
NIST CWE-863
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:arm:china_star-mc1_firmware:-:*:*:*:*:*:*:*
 OR
 cpe:2.3:h:arm:china_star-mc1:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:arm:cortex-35p_firmware:r0:*:*:*:*:*:*:*
 OR
 cpe:2.3:h:arm:cortex-35p:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:arm:cortex-m33_firmware:*:*:*:*:*:*:*:* versions from (including) r0p0 up to (including) r1p0
 OR
 cpe:2.3:h:arm:cortex-m33:-:*:*:*:*:*:*:*
Added CPE Configuration 
AND
 OR
 *cpe:2.3:o:arm:cortex-m55_firmware:*:*:*:*:*:*:*:* versions from (including) r0p0 up to (including) r1p0
 OR
 cpe:2.3:h:arm:cortex-m55:-:*:*:*:*:*:*:*
Changed Reference Type 
https://developer.arm.com/support/arm-security-updates No Types Assigned


 
https://developer.arm.com/support/arm-security-updates Vendor Advisory
Changed Reference Type 
https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability No Types Assigned


 
https://developer.arm.com/support/arm-security-updates/vlldm-instruction-security-vulnerability Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2021-35465
NVD Published Date:
08/23/2021
NVD Last Modified:
06/16/2026
Source:
MITRE