Lucene search

SiemensCVE-2021-25666

HistoryFeb 09, 2021 - 6:15 p.m.

CVE-2021-25666

2021-02-0918:15:51

CWE-770

siemens

web.nvd.nist.gov

cve-2021-25666

scalance

w780

w740

ieee 802.11n

arp protocol

denial-of-service

nvd

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

AI Score

4.3

Confidence

High

EPSS

0.001

Percentile

27.8%

JSON

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 configurations

Nvd

Node

siemensscalance_w780_firmwareRange<6.3

AND

siemensscalance_w780Match-

Node

siemensscalance_w740_firmwareRange<6.3

AND

siemensscalance_w740Match-

VendorProductVersionCPE
siemensscalance_w780_firmware*cpe:2.3:o:siemens:scalance_w780_firmware:*:*:*:*:*:*:*:*
siemensscalance_w780-cpe:2.3:h:siemens:scalance_w780:-:*:*:*:*:*:*:*
siemensscalance_w740_firmware*cpe:2.3:o:siemens:scalance_w740_firmware:*:*:*:*:*:*:*:*
siemensscalance_w740-cpe:2.3:h:siemens:scalance_w740:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
siemens	scalance_w780_firmware	*	cpe:2.3:o:siemens:scalance_w780_firmware::::::::
siemens	scalance_w780	-	cpe:2.3:h:siemens:scalance_w780:-:::::::*
siemens	scalance_w740_firmware	*	cpe:2.3:o:siemens:scalance_w740_firmware::::::::
siemens	scalance_w740	-	cpe:2.3:h:siemens:scalance_w740:-:::::::*

CNA Affected

[
  {
    "product": "SCALANCE W780 and W740 (IEEE 802.11n) family",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V6.3"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-686152.pdf

us-cert.cisa.gov/ics/advisories/icsa-21-040-07

CVSS2

3.3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

4.3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

AI Score

4.3

Confidence

High

EPSS

0.001

Percentile

27.8%

JSON

Related for CVE-2021-25666