CVE-2020-26143: n/a vulnerability

CVE-2020-26143: An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH.

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.

UnknownCVSS not scoredNot KEV-listedUpdatedApr 14, 2026, 08:49 UTC (UTC+00:00)

Security readout for executives and security teams

This CVE describes a Wi-Fi driver flaw in the ALFA AWUS036ACH Windows 10 driver. A nearby attacker could inject data frames into a protected Wi-Fi network by abusing fragmented plaintext frames. The source bundle does not provide CVSS, confirmed active exploitation, or a named patch. Exposure is most likely where Windows 10 endpoints use ALFA AWUS036ACH adapters with driver 1030.36.604. The provided affected-product metadata is incomplete, so asset inventory and driver validation are required before scoping impact. Treat this as a targeted local-network exposure, not an internet-scale emergency. Prioritize confirming whether the affected ALFA adapter and driver exist in the environment, then remediate or isolate those systems based on vendor guidance. Mitigation focus: Inventory Windows endpoints using ALFA AWUS036ACH adapters.; Identify systems running driver version 1030.36.604.; Check ALFA, OS, and hardware vendor guidance for updated drivers..

Prepared: Jun 2, 2026, 19:53 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 11, 2021, 19:36 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

8Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
20210511 Multiple Vulnerabilities in Frame Aggregation and Fragmentation Implementations of 802.11 Specification Affecting Cisco Products: May 2021CVE reference · vendor-advisory, x_refsource_CISCO
https://www.fragattacks.com/CVE reference · x_refsource_MISC
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdCVE reference · x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfCVE reference · x_refsource_CONFIRM
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63CVE reference · x_refsource_MISC
https://cert-portal.siemens.com/productcert/html/ssa-913875.htmlCVE reference
https://cert-portal.siemens.com/productcert/html/ssa-019200.htmlCVE reference

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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