CVE-2026-109576

mediumpriority · track · 0EPSS 0.001 · 2 %ileUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.12% (2nd) EPSS

CVSS 5.5 · medium

Is it mine?

2 products

Check your exposure

Who says so?

1 sources

cisa_csaf_ot

EPSS · scored 2026-10-23

The parser in PEAK-System PCAN driver correctly detected the malformed record, but the loop iterating the record list advanced its processed-bytes counter even when a record had been rejected as invalid.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a mitigation is available.

MitigationPCAN Windows CAN device driverscisa_csaf_ot
For more information see the associated HMS security advisory.
https://www.hms-networks.com/cybersecurity
MitigationPEAK-System Device Driver Setupcisa_csaf_ot
For more information see the associated HMS security advisory.
https://www.hms-networks.com/cybersecurity

cvss

Technical severity, 0–10. One row per scoring source.

6.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · CISA US

v3.15.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ics-cert@hq.dhs.gov USexploitability 1.8 · impact 3.6

v4.06.8mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/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:Xsecondary · ics-cert@hq.dhs.gov US

v4.04.3mediumCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-787USprimaryCWE-787US

affected products (2)

Products and version ranges known to be affected.

HMS Networks PCAN Windows CAN device drivers≤ 5.1.2cisa_csaf_otUS
HMS Networks PEAK-System Device Driver Setup≤ 5.1.2.1151cisa_csaf_otUS

advisories (1)

Vendor and ecosystem advisories describing this.

ICSA-26-293-01HMS Networks PEAK-System PCAN Windows drivers2026-10-20icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could crash the Windows kernel.

sources

Which sources assert this record, and when.

cisa_csaf_ot NVD CVE.org MITRE

published 2026-10-20modified 2026-10-22

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+16028 more

references (4) nvd

External citations — patches, advisories, analysis.

scry

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