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CVE Record

CVE-2020-26509: Airleader Master and Easy <= 6.21 devices have default credentials that can be used for a denial of service.

Airleader Master and Easy <= 6.21 devices have default credentials that can be used for a denial of service.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE describes Airleader Master and Easy devices version 6.21 and earlier using default credentials that can be abused to cause a denial of service. The public record does not provide severity scoring or confirm exploitation in the wild. Business urgency depends on whether these devices support operational processes and are reachable by untrusted users.

Executive priority

Prioritize asset discovery and access reduction first. Escalate if affected devices support critical operations or are reachable outside a tightly controlled management network. The missing CVSS and patch details mean remediation planning should be tied to vendor-confirmed guidance.

Technical view

CVE-2020-26509 is reported as default credentials in Airleader Master and Easy <= 6.21 leading to denial of service. The source bundle provides no CVSS vector, CWE mapping, CPEs, exploit details, or vendor patch information. CISA KEV status is false in the supplied data.

Likely exposure

Likely exposure is limited to organizations operating Airleader Master or Easy devices at version 6.21 or earlier. Risk increases if device management interfaces are reachable from broad internal networks, remote access paths, or the internet. The source bundle lacks formal CPE and vendor inventory metadata.

Exploitation context

The supplied sources do not show active exploitation, and the CVE is not marked as KEV. The vulnerability class is still operationally relevant because default credentials are commonly discoverable and denial of service can affect availability of exposed systems.

Researcher notes

Evidence is sparse: the public CVE description names default credentials and denial of service, but no CVSS, CWE, CPE, exploit status, or fix details are provided in the bundle. Avoid assuming product internals beyond Airleader Master and Easy <= 6.21.

Mitigation direction

  • Identify Airleader Master and Easy devices and record firmware versions.
  • Check vendor or SYSS guidance for supported remediation and upgrade options.
  • Replace default credentials where the product supports credential changes.
  • Restrict device management access to trusted administrative networks.
  • Monitor availability and authentication events for unexpected access patterns.

Validation and detection

  • Confirm whether any deployed devices run version 6.21 or earlier.
  • Verify default credentials are not still accepted on managed devices.
  • Review network paths to ensure management interfaces are not broadly reachable.
  • Check monitoring history for unexplained device outages or unauthorized logins.
Prepared
Confidence
medium
Sources
3

Public sources used

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

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-26509 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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
2Source links

CVSS and timeline data

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.