CVE-2020-26141
6.5CVSSMEDIUM
Description
An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The Wi-Fi implementation does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol.
CVSS Vector Breakdown
Exploitability
AV:AAttack VectorAdjacent
AC:LAttack ComplexityLow
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:HIntegrityHigh
A:NAvailabilityNone
Weaknesses
Affected Products
and 105 more affected products View all →
Exploitability
Official Patch Available
References
http://www.openwall.com/lists/oss-security/2021/05/11/12
openwall.com
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26141
cve.mitre.org
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
github.com
and 74 more references View all →
Timeline
Published
May 11, 2021
Last Updated
Apr 14, 2026
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2020-26141 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows