CVE-2021-25666

CVSS V2 Low 3.3 CVSS V3 Medium 4.3
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.
Overview
  • CVE ID
  • CVE-2021-25666
  • Assigner
  • productcert@siemens.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-02-09T18:15:51
  • Last Modified Date
  • 2021-02-12T21:24:14
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:siemens:scalance_w780_firmware:*:*:*:*:*:*:*:* 1 OR 6.3
cpe:2.3:h:siemens:scalance_w780:-:*:*:*:*:*:*:* 0 OR
AND
cpe:2.3:o:siemens:scalance_w740_firmware:*:*:*:*:*:*:*:* 1 OR 6.3
cpe:2.3:h:siemens:scalance_w740:-:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:A/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • ADJACENT_NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 3.3
  • Severity
  • LOW
  • Exploitability Score
  • 6.5
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Attack Vector
  • ADJACENT_NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • LOW
  • Base Score
  • 4.3
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 1.4
References
Reference URL Reference Tags
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
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-25666
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25666
History
Created Old Value New Value Data Type Notes
2022-05-10 07:23:21 Added to TrackCVE
2022-12-05 21:44:58 2021-02-09T18:15Z 2021-02-09T18:15:51 CVE Published Date updated
2022-12-05 21:44:58 2021-02-12T21:24:14 CVE Modified Date updated
2022-12-05 21:44:58 Analyzed Vulnerability Status updated