Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-89172
StatePUBLISHED
AssignerMicrochip
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-12 10:16:36 UTC
Updated2026-09-12 10:16:36 UTC
DescriptionImproper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052. This issue affects AN1044: through A; AN953: through A; SW300052: through 2.6.

Risk And Classification

Primary CVSS: v4.0 5.6 MEDIUM from dc3f6da9-85b5-4a73-84a2-2ec90b40fca5

CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-1300 | CWE-1300 CWE-1300 Improper protection of physical side channels

VersionSourceTypeScoreSeverityVector
4.0dc3f6da9-85b5-4a73-84a2-2ec90b40fca5Secondary5.6MEDIUMCVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/C...
4.0CNACVSS5.6MEDIUMCVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

CVSS v4.0 Breakdown

Attack Vector
Physical
Attack Complexity
High
Attack Requirements
Present
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
None
Availability
None
Sub Conf.
High
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:P/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microchip AN1044 affected A custom Not specified
CNA Microchip AN953 affected A custom Not specified
CNA Microchip SW300052 affected 2.6 custom Not specified

References

ReferenceSourceLinkTags
www.microchip.com/en-us/application-notes/an953 dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 www.microchip.com
www.microchip.com/en-us/development-tool/sw300052 dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 www.microchip.com
www.microchip.com/en-us/application-notes/an1044 dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 www.microchip.com
www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-... dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 www.microchip.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Daniel Würsch (en)

CNA: Institute of Computer Science, University of Tartu (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-01T22:00:00.000ZReported

Solutions

CNA: None. Side-channel prevention is outside of intended use of product.

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