How severe is CVE-2026-12620?

CVE-2026-12620 has a CVSS 4.0 base score of 4.6, rated medium severity.

Is CVE-2026-12620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-12620?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-12620 have an EU (EUVD) identifier?

Yes. CVE-2026-12620 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38041.

When was CVE-2026-12620 published?

CVE-2026-12620 was published on 2026-06-19 and last updated on 2026-06-22.

CVE-2026-12620

CVE-2026-12620 is a medium-severity vulnerability with a CVSS 4.0 base score of 4.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: Medium (CVSS 4.0 base score 4.6)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-38041
Weakness: CWE-200
Published: 2026-06-19
Last modified: 2026-06-22

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-12620?: CVE-2026-12620 has a CVSS 4.0 base score of 4.6, rated medium severity.
Is CVE-2026-12620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-12620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-12620 have an EU (EUVD) identifier?: Yes. CVE-2026-12620 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-38041.
When was CVE-2026-12620 published?: CVE-2026-12620 was published on 2026-06-19 and last updated on 2026-06-22.

References

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

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