Siemens SINEC NMS up to 3.x ZIP File path traversal

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability was found in Siemens SINEC NMS up to 3.x. It has been rated as critical. This vulnerability affects unknown code of the component ZIP File Handler. The manipulation leads to path traversal. This vulnerability is traded as CVE-2025-40738. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Siemens SINEC NMS up to 3.x and classified as critical. This issue affects an unknown function of the component ZIP File Handler. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability has been identified in SINEC NMS (All versions < V4.0). The affected application does not properly validate file paths when extracting uploaded ZIP files. This could allow an attacker to write arbitrary files to restricted locations and potentially execute code with elevated privileges (ZDI-CAN-26572).

The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2025-40738 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/21/2025). MITRE ATT&CK project uses the attack technique T1006 for this issue.

Upgrading to version 4.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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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: 8.8
VulDB Meta Temp Score: 8.6

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (siemens): 🔒

CVSSv2info

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

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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: SINEC NMS 4.0

Timelineinfo

04/16/2025 CVE reserved
07/08/2025 +83 days Advisory disclosed
07/08/2025 +0 days VulDB entry created
08/21/2025 +44 days VulDB entry last update

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-078892
Status: Confirmed

CVE: CVE-2025-40738 (🔒)
GCVE (CVE): GCVE-0-2025-40738
GCVE (VulDB): GCVE-100-315329

Entryinfo

Created: 07/08/2025 13:36
Updated: 08/21/2025 17:28
Changes: 07/08/2025 13:36 (77), 08/21/2025 17:28 (1)
Complete: 🔍
Cache ID: 216::103

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