Security readout for executives and security teams
Plain-English summary
CVE-2020-26549 affects Aviatrix Controller versions before R5.4.1290. A directory access protection mechanism could be bypassed, allowing files to be downloaded where access should have been blocked. The sources do not provide CVSS scoring, affected deployment details, or confirmed exploited-in-the-wild evidence.
Executive priority
Treat this as a confidentiality risk for Aviatrix-managed cloud networking environments. Prioritize version verification and upgrade for exposed Controllers, especially those reachable outside tightly controlled admin networks. Urgency is meaningful, but public evidence here does not support claiming active exploitation.
Technical view
The vulnerability is an htaccess protection bypass in Aviatrix Controller before R5.4.1290. The described impact is unauthorized file downloading from protected directories. Public source details are sparse and do not specify prerequisites, authentication requirements, file scope, or impact on confidentiality beyond file download exposure.
Likely exposure
Exposure is most likely for organizations running Aviatrix Controller before R5.4.1290. Risk is higher where the Controller web interface is reachable from the internet or broad internal networks. The provided sources do not identify other affected products or versions.
Exploitation context
The bundle marks CISA KEV as false and provides no cited evidence of active exploitation. Critical Start reported multiple Aviatrix vulnerabilities, including this file-download bypass. Available public detail is limited, so exploitation maturity and real-world prevalence are unclear.
Researcher notes
The record lacks CVSS, CWE, prerequisites, and detailed technical conditions. Do not assume authentication state or exact downloadable file paths from the available evidence. Research should focus on version confirmation, exposure surface, file disclosure impact, and correlation with the broader Critical Start Aviatrix advisory.
Mitigation direction
- Upgrade Aviatrix Controller to R5.4.1290 or later, following vendor guidance.
- Restrict Controller access to trusted administrative networks.
- Review whether protected files may contain credentials or sensitive configuration.
- Rotate exposed secrets if logs or investigation suggest file disclosure.
- Monitor vendor advisories for additional remediation details.
Validation and detection
- Inventory Aviatrix Controller deployments and record their exact versions.
- Confirm no Controller remains below R5.4.1290.
- Review access logs for unusual downloads from protected directories.
- Validate protected directory access after remediation without using offensive payloads.
- Check whether sensitive configuration files were accessible during the exposure window.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-2020-26549 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
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
- https://www.criticalstart.com/multiple-vulnerabilities-discovered-in-aviatrix/CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.