CVE intelligence and bounded remediation

CVE-2020-26140 — An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H

Medium CVSS 6.5

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.

Severity
Medium
CVSS
6.5 (3.1)
Published
2021-05-11
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-327

Affected products

  • alfa / awus036h_firmware / 6.1316.1209
  • siemens / scalance_w1748-1_firmware
  • siemens / scalance_w1750d_firmware
  • siemens / scalance_w1788-1_firmware
  • siemens / scalance_w1788-2_firmware
  • siemens / scalance_w1788-2ia_firmware

Showing 6 representative product identities from 204 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Cryptography, certificate, signature, and channel validation

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory affected algorithms, key uses, trust stores, certificate validation settings, random sources, and plaintext channels across clients and services.
  • Determine which secrets, identities, signatures, or data protections depend on the affected primitive or validation path.
  • Check debug, compatibility, fallback, and hostname or audience override settings in build and runtime configuration.

Remediate safely

  • Use a maintained platform cryptographic API with approved algorithms, modes, parameters, randomness, and full peer identity validation.
  • Remove insecure fallback and validation bypasses; separate keys by purpose and load them from managed secret storage.
  • Plan rotation or reissuance for affected keys, certificates, tokens, hashes, or ciphertext and document compatibility sequencing.

Authoritative sources

Complete CVE record and remediation plan

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