Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2020-26140

CVE-2020-26140MEDIUM

n/a n/a — An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H.

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   A   L   N   N  U  N  H  N    6.5   .0292   86.8     —

AFFECTED
  Product  Versions  Fixed
  n/a      n/a –     —

TIMELINE
  Sep 29  Reserved by mitre
  May 11  Published (CNA: mitre)
  Oct 8   ENRICHED — CVE-2020-26140. Received CVSS 6.5 and CPE data from NVD.

CWE-327 · CNA: mitre · CVSS v3.1 · 8 references · NVD status: Modified

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 29, 2020	Reserved	Reserved by mitre
May 11, 2021	Published	Published (CNA: mitre)
October 8, 2026	ENRICHED	ENRICHED — CVE-2020-26140. Received CVSS 6.5 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
n/a	n/a	—	n/a	—

Weaknesses

CWE-327

References (8)

http://www.openwall.com/lists/oss-security/2021/05/11/12 [Mailing List, Third Party Advisory]
https://cert-portal.siemens.com/productcert/html/ssa-019200.html
https://cert-portal.siemens.com/productcert/html/ssa-913875.html
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf [Third Party Advisory]
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md [Third Party Advisory]
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu [Third Party Advisory]
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63 [Third Party Advisory]
https://www.fragattacks.com [Third Party Advisory]

Authoritative record: CVE-2020-26140 at cve.org

Weaknesses: CWE-327

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-26140 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.