01 Record
CVE-2026-12620
Access Token Exposure in URL Parameters in GridTime™ 3000 GNSS Time Server
MediumPUBLISHEDCNA: Microchip
CNA base score4.6 CVSS v4.0CVSS: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
02 Description
Access Token Exposure in URL Parameters in GridTime™ 3000 GNSS Time Server
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.38% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 32.2% of scored records. A rank, not a probability.
- NVD base score
- 4.6 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- 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: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
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-10-25.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-06-19 15:59Z4 MO AGO
- Last updated
- 2026-06-29 05:22Z4 MO AGO
- Reserved
- 2026-06-18
- Assigning CNA
- Microchip
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.6)
- CNA CVSS vector
- 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:A
- Weaknesses
- CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
- Data version
- 5.2
- Document digest
- 4150f81f9d31a856ba3f99fcf8bb68bf49f9ac2449f7bdc825269003f20be030
05 Affected products
VendorProductVersionsPlatforms
06 References
07 Remediation
Upgrade GridTime 3000 GNSS Time Server to the latest firmware. As of the firmware release 1.2r0.0, Access tokens have been removed from URL parameters on affected endpoints.