What is CVE-2026-12620?

CVE-2026-12620 is a medium-severity vulnerability in Microchip Gridtime 3000, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-06-19.

How severe is CVE-2026-12620?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Information disclosure in Microchip Gridtime 3000

CVE-2026-12620

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.

Vulnerability class: Information Disclosure

Published 2026-06-19 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (29.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Microchip Gridtime 3000 — versions 1.0r0.03
Microchip Gridtime 3000
Microchip Gridtime 3000 Firmware

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

dc3f6da9-85b5-4a73-84a2-2ec90b40fca5 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-12620?: CVE-2026-12620 is a medium-severity vulnerability in Microchip Gridtime 3000, classified under Information Disclosure. CVSS score: 6.5/10. Published 2026-06-19.
How severe is CVE-2026-12620?: Medium severity. CVSS v3 base score is 6.5 out of 10.