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CVE
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CVE-2020-26139Date: (C)2021-05-13   (M)2024-05-06


An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.3CVSS Score : 2.9
Exploit Score: 1.6Exploit Score: 5.5
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: ADJACENT_NETWORKAccess Vector: ADJACENT_NETWORK
Attack Complexity: HIGHAccess Complexity: MEDIUM
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: PARTIAL
Integrity: NONE 
Availability: HIGH 
  
Reference:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
http://www.openwall.com/lists/oss-security/2021/05/11/12
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
https://www.fragattacks.com

CWE    1
CWE-287
OVAL    30
oval:org.secpod.oval:def:89044458
oval:org.secpod.oval:def:89044435
oval:org.secpod.oval:def:89044355
oval:org.secpod.oval:def:89044396
...

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