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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2020-26140

CVE Program ContainerCVE-2020-26140

Answer in brief

CVE-2020-26140 records a Unknown severity vulnerability in CVE Program Container. The current sources do not mark it as known exploited. The current feed maps n/a/n/a (generic), Siemens/SCALANCE W721-1 RJ45 (generic), Siemens/SCALANCE W722-1 RJ45 (generic), Siemens/SCALANCE W734-1 RJ45 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published May 11, 2021Updated Oct 8, 2026Source checked Oct 8, 2026First seen by HOL Oct 8, 2026Material review Oct 8, 2026
Upstream Advisory

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 8, 2026
References
8 linked sources
Open source record

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
24 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps n/a/n/a (generic), Siemens/SCALANCE W721-1 RJ45 (generic), Siemens/SCALANCE W722-1 RJ45 (generic), Siemens/SCALANCE W734-1 RJ45 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
n/a/n/agenericn/aNot reported
Siemens/SCALANCE W721-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W722-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W734-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W734-1 RJ45 (USA)generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W738-1 M12generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W748-1 M12generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W748-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W761-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W774-1 M12 EECgeneric>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W774-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W774-1 RJ45 (USA)generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W778-1 M12generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W778-1 M12 EECgeneric>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W778-1 M12 EEC (USA)generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W786-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W786-2IA RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W786-2 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W786-2 SFPgeneric>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W788-1 M12generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W788-1 RJ45generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W788-2 M12generic>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W788-2 M12 EECgeneric>=0 <V6.6.0V6.6.0
Siemens/SCALANCE W788-2 RJ45generic>=0 <V6.6.0V6.6.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for n/a/n/a, Siemens/SCALANCE W721-1 RJ45, Siemens/SCALANCE W722-1 RJ45.
  2. 2Review the reported fix. Update Siemens/SCALANCE W721-1 RJ45 to V6.6.0; Siemens/SCALANCE W722-1 RJ45 to V6.6.0; Siemens/SCALANCE W734-1 RJ45 to V6.6.0; Siemens/SCALANCE W734-1 RJ45 (USA) to V6.6.0; Siemens/SCALANCE W738-1 M12 to V6.6.0; Siemens/SCALANCE W748-1 M12 to V6.6.0; Siemens/SCALANCE W748-1 RJ45 to V6.6.0; Siemens/SCALANCE W761-1 RJ45 to V6.6.0; Siemens/SCALANCE W774-1 M12 EEC to V6.6.0; Siemens/SCALANCE W774-1 RJ45 to V6.6.0; Siemens/SCALANCE W774-1 RJ45 (USA) to V6.6.0; Siemens/SCALANCE W778-1 M12 to V6.6.0; Siemens/SCALANCE W778-1 M12 EEC to V6.6.0; Siemens/SCALANCE W778-1 M12 EEC (USA) to V6.6.0; Siemens/SCALANCE W786-1 RJ45 to V6.6.0; Siemens/SCALANCE W786-2IA RJ45 to V6.6.0; Siemens/SCALANCE W786-2 RJ45 to V6.6.0; Siemens/SCALANCE W786-2 SFP to V6.6.0; Siemens/SCALANCE W788-1 M12 to V6.6.0; Siemens/SCALANCE W788-1 RJ45 to V6.6.0; Siemens/SCALANCE W788-2 M12 to V6.6.0; Siemens/SCALANCE W788-2 M12 EEC to V6.6.0; Siemens/SCALANCE W788-2 RJ45 to V6.6.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    May 11, 2021

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 8, 2026

Sources and claim methodology

  • Source referencecert-portal.siemens.com
  • Source referencecert-portal.siemens.com
  • Source referencecert-portal.siemens.com
  • GitHub security advisorygithub.com
  • Source referencetools.cisco.com
  • Source referencearista.com
  • Source referencefragattacks.com
  • Source referenceopenwall.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

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