{"id":"CVE-2026-89172","state":"PUBLISHED","title":"Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms","description":"Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052.\n\nThis issue affects AN1044: through A; AN953: through A; SW300052: through 2.6.","publishedAt":"2026-09-12T09:26:05.932Z","updatedAt":"2026-09-14T13:00:29.366Z","severity":{"score":5.6,"label":"Medium","version":"4.0","vector":"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":"Microchip"},"assigner":"Microchip","products":["Microchip AN1044","Microchip AN953","Microchip SW300052"],"affected":[{"vendor":"Microchip","product":"AN1044","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"A","versionType":"custom"}]},{"vendor":"Microchip","product":"AN953","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"A","versionType":"custom"}]},{"vendor":"Microchip","product":"SW300052","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.6","versionType":"custom"}]}],"references":["https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/side-channel-attack-an1044-an953-sw300052-cryptographic-algorithms","https://www.microchip.com/en-us/application-notes/an1044","https://www.microchip.com/en-us/application-notes/an953","https://www.microchip.com/en-us/development-tool/sw300052"],"weaknesses":["CWE-1300"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89172.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89172","state":"PUBLISHED","datePublished":"2026-09-12T09:26:05.932Z","dateUpdated":"2026-09-14T13:00:29.366Z","assignerShortName":"Microchip","assignerOrgId":"dc3f6da9-85b5-4a73-84a2-2ec90b40fca5","dateReserved":"2026-09-11T05:25:06.717Z"},"containers":{"cna":{"title":"Side-channel attack of AN1044/AN953/SW300052 cryptographic algorithms","descriptions":[{"lang":"en","value":"Improper protection of physical side channels vulnerability in Microchip AN1044, Microchip AN953, and Microchip SW300052.\n\nThis issue affects AN1044: through A; AN953: through A; SW300052: through 2.6."}],"affected":[{"vendor":"Microchip","product":"AN1044","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"A","versionType":"custom"}]},{"vendor":"Microchip","product":"AN953","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"A","versionType":"custom"}]},{"vendor":"Microchip","product":"SW300052","defaultStatus":"unknown","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.6","versionType":"custom"}]}],"references":[{"url":"https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/side-channel-attack-an1044-an953-sw300052-cryptographic-algorithms","tags":["vendor-advisory"]},{"url":"https://www.microchip.com/en-us/application-notes/an1044","tags":["related"]},{"url":"https://www.microchip.com/en-us/application-notes/an953","tags":["related"]},{"url":"https://www.microchip.com/en-us/development-tool/sw300052","tags":["related"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"PHYSICAL","attackComplexity":"HIGH","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","subConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"MEDIUM","baseScore":5.6,"vectorString":"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-1300","lang":"en","description":"CWE-1300 Improper protection of physical side channels","type":"CWE"}]}],"providerMetadata":{"shortName":"Microchip","orgId":"dc3f6da9-85b5-4a73-84a2-2ec90b40fca5","dateUpdated":"2026-09-12T09:26:05.932Z"},"impacts":[{"capecId":"CAPEC-97","descriptions":[{"lang":"en","value":"CAPEC-97"}]}],"solutions":[{"lang":"en","value":"None. Side-channel prevention is outside of intended use of\nproduct.","supportingMedia":[{"type":"text/html","base64":false,"value":"<p>None. Side-channel prevention is outside of intended use of\nproduct.</p>"}]}],"timeline":[{"time":"2026-04-01T22:00:00.000Z","lang":"en","value":"Reported"}],"credits":[{"lang":"en","value":"Daniel Würsch","type":"finder"},{"lang":"en","value":"Institute of Computer Science, University of Tartu","type":"other"}],"source":{"advisory":"PSIRT-128","discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 1.0.5"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-89172","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-14T12:55:05.158056Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T13:00:29.366Z"}}]}}}