What is the CVSS score of CVE-2018-4856?

CVE-2018-4856 has a CVSS 3.0 base score of 4.9 (Medium). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 1.3%.

Siclock Tc400 Firmware CVE-2018-4856

MEDIUM

Improper Authentication (CWE-287)

2018-07-03 productcert@siemens.com

Authentication Bypass Siclock Tc400 Firmware Siclock Tc100 Firmware

4.9

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

4.9 MEDIUM

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

CVE Published

Jul 03, 2018 - 14:29 nvd

MEDIUM 4.9

DescriptionNVD

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with administrative access to the device's management interface could lock out legitimate users. Manual interaction is required to restore the access of legitimate users.

AnalysisAI

A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). Rated medium severity (CVSS 4.9), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. A vulnerability has been identified in SICLOCK TC100 (All versions) and SICLOCK TC400 (All versions). An attacker with administrative access to the device's management interface could lock out legitimate users. Manual interaction is required to restore the access of legitimate users. Affected products include: Siemens Siclock Tc400 Firmware, Siemens Siclock Tc100 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.