CVE-2023-0011

Command Execution through Serial Interface of u-blox TOBY-L2

MEDIUM
6.8
CVSS Score
Published: December 20, 2023 at 07:55 AM UTC
Updated: June 17, 2026 at 05:24 AM UTC
11 products affected across 1 vendorToby L210 FirmwareToby L280 FirmwareToby L220 Firmware

Using TOBY-L2 by u-blox?

Get instant alerts when new vulnerabilities affect TOBY-L2 - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.8
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

A flaw in the input validation in TOBY-L2 allows a user to execute arbitrary operating system commands using specifically crafted AT commands. This vulnerability requires physical access to the serial interface of the module or the ability to modify the system or software which uses its serial interface to send malicious AT commands. Exploitation of the vulnerability gives full administrative (root) privileges to the attacker to execute any operating system command on TOBY-L2 which can lead to modification of the behavior of the module itself as well as the components connected with it (depending on its rights on other connected systems). It can further provide the ability to read system level files and hamper the availability of the module as well.. This issue affects TOBY-L2 series: TOBY-L200, TOBY-L201, TOBY-L210, TOBY-L220, TOBY-L280.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions
u-blox-toby-l200 (same device)
All versions
u-blox-toby-l201 (same device)
All versions
u-blox-toby-l210 (same device)
All versions
u-blox-toby-l220 (same device)
All versions
u-blox-toby-l280 (same device)
All versions
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20CWE-78

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card