CVE-2020-26140

MEDIUM
6.5
CVSS Score
Published: May 11, 2021 at 07:34 PM UTC
Updated: October 8, 2026 at 10:16 PM UTC
215 products affected across 5 vendorsScalance W1750D FirmwareKiller Wi Fi 6E AX1675 FirmwareProset Wi Fi 6E AX210 Firmware· also runs on 194 platforms

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Severity
MEDIUM6.5
Exploit prediction
EPSS 3%
SSVC
No known exploit

Description

An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The WEP, WPA, WPA2, and WPA3 implementations accept plaintext frames in a protected Wi-Fi network. An adversary can abuse this to inject arbitrary data frames independent of the network configuration.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

alfa-awus036h (same device)
-
arista-c-100 (same device)
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arista-c-110 (same device)
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arista-c-120 (same device)
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arista-c-130 (same device)
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arista-c-200 (same device)
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arista-c-230 (same device)
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arista-c-235 (same device)
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arista-c-250 (same device)
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arista-c-260 (same device)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-327

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