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CVE-2021-25666

nvd nist
Published: Feb 9, 2021Modified: Jun 17, 2026

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4.3
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Exploitability: 2.8 / Impact: 1.4
Source: NVD

Description

A vulnerability has been identified in SCALANCE W780 and W740 (IEEE 802.11n) family (All versions < V6.3). Sending specially crafted packets through the ARP protocol to an affected device could cause a partial denial-of-service, preventing the device to operate normally for a short period of time.

Affected (2)

Siemens
2 products
Scalance W780 Firmware
Scalance W740 Firmware
Configuration A
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Scalance W780 Firmware
Before 6.3
Running on/withPlatform Versions
Siemens
Scalance W780
All versions
Configuration B
1 vulnerable · 1 platform
Vulnerable SoftwareAffected Versions
Scalance W740 Firmware
Before 6.3
Running on/withPlatform Versions
Siemens
Scalance W740
All versions

Related CWEs

CWE-770
Allocation of Resources Without Limits or Throttling
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (4)

Source: productcert@siemens.com
Vendor Advisory
Source: productcert@siemens.com
Third Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party AdvisoryVDB Entry

Timeline

No history available yet.