RT-Labs C-Open up to 1.1.0 LSS Protocol null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.15+

Summaryinfo

A vulnerability has been found in RT-Labs C-Open up to 1.1.0 and classified as critical. This issue affects some unknown processing of the component LSS Protocol. Performing a manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2026-82357. It is possible to initiate the attack remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in RT-Labs C-Open up to 1.1.0. This affects an unknown part of the component LSS Protocol. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability. The summary by CVE is:

RT-Labs AB C-Open CANopen contains a NULL pointer dereference if the LSS protocol is used to configure the device. An object defined by the user application may not have all required subindexes for object 0x1018. An unauthenticated, remote attacker with access to the CAN bus, through a compromised node for instance, can initiate the LSS protocol on a device with a misconfigured identity object and potentially crash the device. Fixed in 1.1.1.

It is possible to read the advisory at rt-labs.com. This vulnerability is uniquely identified as CVE-2026-82357 since 08/28/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 1.1.1 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (cisa-cg): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: C-Open 1.1.1

Timelineinfo

08/28/2026 CVE reserved
10/01/2026 +34 days Advisory disclosed
10/01/2026 +0 days VulDB entry created
10/01/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: rt-labs.com
Status: Confirmed

CVE: CVE-2026-82357 (🔒)
GCVE (CVE): GCVE-0-2026-82357
GCVE (VulDB): GCVE-100-412779

Entryinfo

Created: 10/01/2026 21:57
Changes: 10/01/2026 21:57 (75)
Complete: 🔍
Cache ID: 216::103

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