CVE-2026-103672

highpriority · track · 0EPSS 0.001 · 2 %ileUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.13% (2nd) EPSS

CVSS 7.1 · high

Is it mine?

2 products

Check your exposure

Who says so?

1 sources

cisa_csaf_ot

EPSS · scored 2026-10-27

The PEAK-System PCAN parser indexes a length table using attacker-controlled DLC without enforcing DLC <= 0x0f, then copies attacker payload from record+0x1c into a fixed-size stack destination.

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.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.5–7.1

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · CISA US

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · ics-cert@hq.dhs.gov USexploitability 1.8 · impact 5.2

v4.06.9mediumCVSS: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:Xsecondary · ics-cert@hq.dhs.gov US

v4.04.5mediumCVSS: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: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-129USprimaryCWE-129US

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

related (958)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2022-48503US	high8.8OT critical	3.21% (88th)	KEV	2023-08-14
The issue was addressed with improved bounds checks. This issue is fixed in tvOS 15.6, watchOS 8.7, iOS 15.6 and iPadOS 15.6, macOS Monterey 12.5, Safari 15.6. Processing web conte…
CVE-2017-11292US	high8.8OT critical	11.9% (96th)	KEV	2017-10-22
Adobe Flash Player version 27.0.0.159 and earlier has a flawed bytecode verification procedure, which allows for an untrusted value to be used in the calculation of an array index.…
CVE-2013-1322US	high10.0	25.3% (98th)	—	2013-05-15
Microsoft Publisher 2003 SP3 does not properly check table range data, which allows remote attackers to execute arbitrary code via a crafted Publisher file, aka "Publisher Invalid…
CVE-2022-35737US	high7.5	23.6% (98th)	Exploit	2022-08-03
SQLite 1.0.12 through 3.39.x before 3.39.2 sometimes allows an array-bounds overflow if billions of bytes are used in a string argument to a C API.
CVE-2022-46152US	high8.8	0.49% (42nd)	Exploit	2022-11-29
OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vuln…

+953 more

references (4) nvd

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan