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CVE-2020-26143

Published: May 11, 2021Updated: Apr 14, 2026 Sources: CVE List NVD BDU csafCWE-20
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
4.2%
Top 10.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH. The WEP, WPA, WPA2, and WPA3 implementations accept fragmented plaintext frames in a protected Wi-Fi network. An adversary can abuse this to inject arbitrary data frames independent of the network configuration.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-20

Affected Products

n/an/a
Cisco Aironet 1560Cisco Systems Inc.Networking Infrastructure
Cisco Aironet 2800Cisco Systems Inc.Networking Infrastructure
Cisco Aironet 3800Cisco Systems Inc.Networking Infrastructure
Cisco Aironet 4800Cisco Systems Inc.Networking Infrastructure
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco
and 9 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
tools.cisco.com
https://www.fragattacks.com
fragattacks.com
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
github.com
and 65 more references View all →

Timeline

Published
May 11, 2021
Last Updated
Apr 14, 2026

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