What is the CVSS score of CVE-2026-12502?

CVE-2026-12502 has a CVSS 4.0 base score of 8.4 (High). CVSS vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.1%.

Lip Me20Xc CVE-2026-12502

EUVD-2026-48590 HIGH

Improper Privilege Management (CWE-269)

2026-07-24 NCSC.ch

GHSA-x5vq-r47f-779j

Privilege Escalation Lip Me20Xc L Inx L Gate L Roc L Iob L Dali L Vis L Pad Loytec

8.4

CVSS 4.0 · Vendor: NCSC.ch

View

Vulnerability Assessment

Weakness

CWE

CWE-269

OWASP Top 10:2025

A06:2025 - Insecure Design

ASVS 5.0

V8 - Authorization Least privilege enforcement

MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 26, 2026

A local privilege escalation flaw in the ltsudo binary on Loytec LIP-ME201C and related L-Series building automation controllers allows an attacker with superadmin group membership to reset the password of any LARM user, including the larmapp service account, via the set-passwd subcommand. This can lead to full compromise of LINX-A64-based devices running firmware up to version 8.4.16. Exploitation requires local access and high privileges; no active exploitation or public exploit code is currently known, and EPSS indicates a very low probability of exploitation.

Affected VersionsENISA

L-DALI 0 ≤8.4.16

L-VIS 0 ≤8.4.16

LIP-ME20xC 0 ≤8.4.16

L-INX 0 ≤8.4.16

L-ROC 0 ≤8.4.16

L-GATE 0 ≤8.4.16

L-PAD 0 ≤8.4.16

L-IOB 0 ≤8.4.16

Affected Packages

euvd l_dali no fix

euvd l_gate no fix

euvd l_inx no fix

euvd l_iob no fix

euvd l_pad no fix

euvd l_roc no fix

euvd l_vis no fix

euvd lip_me20xc no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 8 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (NCSC.ch) PRIMARY 8.4 HIGH

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (NCSC.ch) · only source for this CVE.

CVSS VectorVendor: NCSC.ch

Attack Vector

Local

Attack Complexity

Low

Attack Requirements

None

Privileges Required

High

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

High

Vulnerable system: Availability

High

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

DescriptionCVE.org

Improper Privilege Management (CWE-269) in /usr/bin/ltsudo in Loytec LIP-ME201C, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD through 8.4.16 on LINX-A64 allows a superadmin-group attacker to reset the password of any LARM user (including the larmapp service account) via the set-passwd subcommand.

Threat Intelligence Overview

EPSS Score

0.1%

Top 99% exploitable

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.1%

Patch available No

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Defer

Exploitation

None

System Exposure· derived

Small

Automatable

Human Impact· derived

Medium

Technical Impact

Total

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +42

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.