CVE-2020-26139
5.3CVSSMEDIUM
Description
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 Vector Breakdown
Exploitability
AV:AAttack VectorAdjacent
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:NConfidentialityNone
I:NIntegrityNone
A:HAvailabilityHigh
Weaknesses
Affected Products
and 185 more affected products View all →
Attack Graph
Products CVE Techniques Tactics
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Exploitability
Official Patch Available
MITRE ATT&CK
2 techniques Initial Access
References
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-26139
cve.mitre.org
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.235
kernel.org
https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.193
kernel.org
and 76 more references View all →
Timeline
Published
May 11, 2021
Last Updated
Apr 14, 2026
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