CVE-2026-12620: microchip gridtime_3000_firmware
CVSS: 6.5v3.1MediumAnalyzed
Published 19-06-2026Last modified 29-06-2026
Vulnerability summary
CVE-2026-12620 is a medium (CVSS 6.5) vulnerability in microchip gridtime_3000_firmware. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.1% of scored vulnerabilities.
CVSS score
6.5/10
010
Medium · v3.1 (NVD)EPSS score
0.39%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 19-06-2026PublishedVulnerability first disclosed.
- 29-06-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.6Preferred score · CVE.org (CNA)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:ASourcesAll 2 agree
- NVDNIST4.6MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:A/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
Medium 6.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NSourcesSingle source
EPSS trend
Probability
0.39%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
0.00 pp
From 0.39% on 20-09-2026
20-09-202620-10-2026
EPSS score0.39%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Microchip1 product
- gridtime_3000_firmware≥ 1.0r0.03, ≤ 1.1r0.0 | ≥ 1.0r0.03, < 1.2r0.0
1 vendor · 1 product
References
1 links- www.microchip.com/en-us/…Vendor Advisory