CVE-2021-25666

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.

CVSS v3.0 4.3 MEDIUM
CVSS v2.0 3.3 LOW

4.3^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

3.3^/10

CVSS v2.0 : LOW

Vector : AV:A/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 6.5 / Impact : 2.9

Access Vector ADJACENT_NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-686152.pdf	Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-040-07	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:siemens:scalance_w780_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:scalance_w780:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:o:siemens:scalance_w740_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:siemens:scalance_w740:-:*:*:*:*:*:*:*

Information

Published : 2021-02-09 10:15

Updated : 2021-02-12 13:24

NVD link : CVE-2021-25666

Mitre link : CVE-2021-25666

JSON object : View

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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Products Affected

siemens

scalance_w780_firmware
scalance_w780
scalance_w740
scalance_w740_firmware

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