Loytec LIP-ME20xC up to 8.4.16 PAM Configuration /etc/passwd improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.8$0-$5k3.89

Summaryinfo

A vulnerability categorized as very critical has been discovered in Loytec LIP-ME20xC, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD up to 8.4.16. Affected by this issue is some unknown functionality of the file /etc/passwd of the component PAM Configuration. Such manipulation leads to improper authentication. This vulnerability is uniquely identified as CVE-2026-12504. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Loytec LIP-ME20xC, L-INX, L-GATE, L-ROC, L-IOB, L-DALI, L-VIS and L-PAD up to 8.4.16. It has been rated as very critical. Affected by this issue is an unknown functionality of the file /etc/passwd of the component PAM Configuration. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Improper Authentication (CWE-287) in the PAM configuration 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 local attacker to authenticate as a uid=0 account without a password and obtain a root shell via an `/etc/passwd` entry with an empty password field.

The advisory is available at loytec.com. This vulnerability is handled as CVE-2026-12504 since 06/17/2026. The exploitation is known to be easy. Local access is required to approach this attack. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 07/24/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.8

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

06/17/2026 CVE reserved
07/24/2026 +37 days Advisory disclosed
07/24/2026 +0 days VulDB entry created
07/24/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: loytec.com
Status: Not defined

CVE: CVE-2026-12504 (🔒)
GCVE (CVE): GCVE-0-2026-12504
GCVE (VulDB): GCVE-100-382922

Entryinfo

Created: 07/24/2026 16:46
Changes: 07/24/2026 16:46 (53)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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