01 Record
CVE-2026-103672
HMS Networks PEAK-System PCAN Windows drivers Improper Validation of Array Index
MediumPUBLISHEDCNA: icscert
CNA base score6.9 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
02 Description
HMS Networks PEAK-System PCAN Windows drivers Improper Validation of Array Index
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.12% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 2.0% of scored records. A rank, not a probability.
- NVD base score
- 6.9 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
- Awaiting Analysis. NVD last modified this record on 2026-10-22.
- 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
- 2026-10-20 20:23Z8 DAYS AGO
- Last updated
- 2026-10-20 20:23Z8 DAYS AGO
- Reserved
- 2026-10-15
- Assigning CNA
- icscert
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.9)
- CNA CVSS vector
- CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
- Weaknesses
- CWE-129Improper Validation of Array IndexVariant
- Data version
- 5.2
- Document digest
- b5ade5ac81784bdef827b6407fca45d954a7c9a186bf206506fa9e7b8be57adb
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.hms-networks.comhttps://www.hms-networks.com/cybersecurity
- www.peak-system.comhttps://www.peak-system.com/support/downloads/software/
- www.cisa.govhttps://www.cisa.gov/news-events/ics-advisories/icsa-26-293-01
- github.comhttps://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-293-01.json
07 Remediation
HMS Networks AB has addressed the issue in version 5.1.4 and recommends that users upgrade to the newest available version. Users can find software updates for PEAK-System PCAN on the software download page https://www.peak-system.com/support/downloads/software/ . For more information see the associated HMS security advisory https://www.hms-networks.com/cybersecurity .