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CVE-2026-89172— Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms

Quick assessment

Affected
Microchip AN1044
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Microchip AN1044是美国Microchip公司的一款提供微控制器应用设计参考的技术文档。 Microchip AN1044 A及之前版本、Microchip AN953 A及之前版本和Microchip SW300052 2.6及之前版本存在侧信道信息泄露漏洞，该漏洞源于物理侧信道保护不当，可能导致信息泄露。

CVSS 5.6 · Medium EPSS 0.15% · P5

Possible ATT&CK Techniques 1 AI

T1056 · Input Capture

Affected Version Matrix 3

VendorProduct Version RangeStatus
Microchip AN1044 ≤ A affected
Microchip AN953 ≤ A affected
Microchip SW300052 ≤ 2.6 affected
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I. Basic Information for CVE-2026-89172

Vulnerability Information
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Vulnerability Title
Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms
Source: CVE Program / CVE List V5
Vulnerability Description
Improper 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1300
Source: CVE Program / CVE List V5
Vulnerability Title
Microchip AN1044 侧信道信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microchip AN1044是美国Microchip公司的一款提供微控制器应用设计参考的技术文档。 Microchip AN1044 A及之前版本、Microchip AN953 A及之前版本和Microchip SW300052 2.6及之前版本存在侧信道信息泄露漏洞，该漏洞源于物理侧信道保护不当，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Microchip AN1044 0 ~ A -
Microchip AN953 0 ~ A -
Microchip SW300052 0 ~ 2.6 -

II. Public POCs for CVE-2026-89172

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III. Intelligence Information for CVE-2026-89172

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Vendor Pages for CVE-2026-89172 (4)

IV. Related Vulnerabilities

Same vendor: Microchip
Same weakness: CWE-1300

V. Comments for CVE-2026-89172

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