TI-2026-10814 Aliases CVE-2026-12620 GHSA-4766-4px9-j9m3

Access Token Exposure in URL Parameters in GridTime™ 3000 GNSS Time Server

LOW 21CWE-200Published 2026-06-19 · Updated 2026-06-29

Key facts

Attack vector: Network
Privileges required: High
User interaction: Active
Attack complexity: Low
Attack requirements: None
Impact type: Information disclosure
Confidentiality · integrity · availability: Low · None · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-200.

Summary

The GridTime 3000 GNSS Time Server leaks the access token in the URL parameters of some endpoints. This issue affects GridTime 3000: from 1.0r0.03 through 1.1r0.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00385 32nd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Microchip	GridTime 3000	1.0r0.03 – 1.1r0.0	—	No fix listed	CNA

GridTime 3000 VendorMicrochip Affected 1.0r0.03 – 1.1r0.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:microchip:gridtime_3000_firmware::::::::	1.0r0.03 to before 1.2r0.0	Vulnerable	Microchip
cpe:2.3:h:microchip:gridtime_3000:-:::::::*	not specified by NVD	Running on	Microchip

cpe:2.3:o:microchip:gridtime_3000_firmware:*:*:*:*:*:*:*:* Versions 1.0r0.03 to before 1.2r0.0 Vulnerable ·Microchip
cpe:2.3:h:microchip:gridtime_3000:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microchip

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-12620
2026-10-03 Alias added: GHSA-4766-4px9-j9m3

References

Advisory 1

https://www.microchip.com/en-us/solutions/technologies/embedded-security/how-to-report-potential-product-security-vulnerabilities/gridtime-3000-gnss-time-server-access-token-exposure

TI-2026-10815 Cross-Site Scripting (XSS) Vulnerability in Password Reset Redirect in GridTime™ 3000 GNSS Time Server CVSS 4.0MEDIUM 5.3
TI-2026-10816 Open Redirect Vulnerability in Password Reset Submission in GridTime™ 3000 GNSS Time Server CVSS 4.0MEDIUM 5.3
TI-2026-10813 GridTime™ 3000 GNSS Time Server CSRF to XSS CVSS 4.0MEDIUM 5.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences