CVE-2026-12621

Improper neutralization of input during web page generation XSS vulnerability in the GridTime 3000 (password reset form) allows XSS. This issue affects GridTime 3000: from 1.0r0.03 before 1.2r0.0.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/gridtime-3000-gnss-time-server-dom-xss	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:microchip:gridtime_3000_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:microchip:gridtime_3000:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-19 16:16

Updated : 2026-07-09 16:42

NVD link : CVE-2026-12621

Mitre link : CVE-2026-12621

CVE.ORG link : CVE-2026-12621

JSON object : View

Products Affected

microchip

gridtime_3000
gridtime_3000_firmware

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

{"id": "CVE-2026-12621", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-12621", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-22T16:51:30.787287Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}], "cvssMetricV40": [{"type": "Secondary", "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 5.3, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "LOW", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5", "affectedData": [{"vendor": "Microchip", "product": "GridTime 3000", "versions": [{"status": "affected", "version": "1.0r0.03", "versionType": "custom", "lessThanOrEqual": "1.1r0.0"}], "defaultStatus": "unaffected"}]}], "published": "2026-06-19T16:16:17.173", "references": [{"url": "https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/gridtime-3000-gnss-time-server-dom-xss", "tags": ["Vendor Advisory"], "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Improper neutralization of input during web page generation XSS \nvulnerability in the GridTime 3000 (password reset form) allows XSS. \nThis issue affects GridTime 3000: from 1.0r0.03 before 1.2r0.0."}], "lastModified": "2026-07-09T16:42:05.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:microchip:gridtime_3000_firmware:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FAEA2B62-D75E-4D3B-8EC4-F1D3E3DD545B", "versionEndExcluding": "1.2r0.0", "versionStartIncluding": "1.0r0.03"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:microchip:gridtime_3000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9568C140-DD2F-4237-84FE-831FE23A0808"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "dc3f6da9-85b5-4a73-84a2-2ec90b40fca5"}