How severe is CVE-2020-26549?

CVE-2020-26549 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-26549 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26549?

CVE-2020-26549 affects Aviatrix Controller. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-26549?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-26549 published?

CVE-2020-26549 was published on 2020-11-17 and last updated on 2026-06-17.

CVE-2020-26549

CVE-2020-26549 is a high-severity vulnerability in Aviatrix Controller with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-552.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-552
Affected product: Aviatrix Controller
Published: 2020-11-17
Last modified: 2026-06-17

Description

An issue was discovered in Aviatrix Controller before R5.4.1290. The htaccess protection mechanism to prevent requests to directories can be bypassed for file downloading.

Frequently asked questions

What is CVE-2020-26549?: An issue was discovered in Aviatrix Controller before R5.4.1290. The htaccess protection mechanism to prevent requests to directories can be bypassed for file downloading.
How severe is CVE-2020-26549?: CVE-2020-26549 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-26549 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26549?: CVE-2020-26549 affects Aviatrix Controller. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-26549?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-26549 published?: CVE-2020-26549 was published on 2020-11-17 and last updated on 2026-06-17.

References

https://www.criticalstart.com/multiple-vulnerabilities-discovered-in-aviatrix/

Affected products (1)

cpe:2.3:a:aviatrix:controller:5.3.1516:*:*:*:*:*:*:*

More vulnerabilities in Aviatrix Controller

CVE-2024-50603 — Critical (CVSS 10.0): An issue was discovered in Aviatrix Controller before 7.1.4191 and 7.2.x before 7.2.4996. Due to the improper…
CVE-2021-40870 — Critical (CVSS 9.8): An issue was discovered in Aviatrix Controller 6.x before 6.5-1804.1922. Unrestricted upload of a file with a dangerous…
CVE-2020-26553 — Critical (CVSS 9.8): An issue was discovered in Aviatrix Controller before R6.0.2483. Several APIs contain functions that allow arbitrary…
CVE-2020-13417 — Critical (CVSS 9.8): An Elevation of Privilege issue was discovered in Aviatrix VPN Client before 2.10.7, because of an incomplete fix for…
CVE-2020-26548 — High (CVSS 8.8): An issue was discovered in Aviatrix Controller before R5.4.1290. There is an insecure sudo rule: a user exists that can…
CVE-2020-13412 — High (CVSS 8.8): An issue was discovered in Aviatrix Controller before 5.4.1204. An API call on the web interface lacked a session token…

All CVEs affecting Aviatrix Controller →

Other CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities

CVE-2025-41240 — Critical (CVSS 10.0): Three Bitnami Helm charts mount Kubernetes Secrets under a predictable path (/opt/bitnami/*/secrets) that is located…
CVE-2024-56731 — Critical (CVSS 10.0): Gogs is an open source self-hosted Git service. Prior to version 0.13.3, it's still possible to delete files under the…
CVE-2024-6209 — Critical (CVSS 10.0): Unauthorized file access in WEB Server in ABB ASPECT - Enterprise v3.08.01; NEXUS Series v3.08.01 ; MATRIX Series…
CVE-2025-14771 — Critical (CVSS 9.9): Files or directories accessible to external parties vulnerability in ABB T-MAC Plus. This issue affects T-MAC Plus:…
CVE-2024-39931 — Critical (CVSS 9.9): Gogs through 0.13.0 allows deletion of internal files.
CVE-2021-43821 — Critical (CVSS 9.9): Opencast is an Open Source Lecture Capture & Video Management for Education. Opencast before version 9.10 or 10.6…

Browse all CWE-552 (Files or Directories Accessible to External Parties) vulnerabilities →