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On CISA KEVCritical

CVE-2020-26879Ruckus Vriot Hardcoded Credentials

Ruckus vRioT through 1.5.1.0.21 has an API backdoor that is hardcoded into validate_token.py.

Published Oct 26, 2020 · Updated Nov 21, 2024

Key Facts

Patch immediately
  • CVE-2020-26879 is a critical-severity vulnerability (CVSS 9.8 v3.1) affecting Ruckus Vriot (Commscope).
  • It is exploited in the wild, listed in CIRCL KEV, Industry KEV feed since Jun 28, 2022. No public exploit code is known.
  • EPSS estimates a 44% probability of exploitation in the next 30 days.
  • Fixed versions are available, including Ruckus Vriot <=1.5.1.0.21, Ruckus Vriot 1.5.1.0.21.
  • Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Scores

CVSS v3.1

9.8

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS (30-day exploit likelihood)

44%

Higher than 98.7% of all scored CVEs

Exploit maturity

Exploited (KEV)

ATLAS score

60/100

Publication score, see How it works

Exploitation Verdict

KEV listed

Jun 28, 2022

610 days after publication

Federal due date

None

No federal due date

Ransomware use

Not reported

Attributed actors

None named

Exploit & Defence Guidance

Exploit maturity

Exploited (KEV)

Public exploit code

0

Proof-of-concept links

In-the-wild evidence

11

Reports of active use

Description

Ruckus vRioT through 1.5.1.0.21 has an API backdoor that is hardcoded into validate_token.py. An unauthenticated attacker can interact with the service API by using a backdoor value as the Authorization header.

Known-Exploited Catalog Listings

CatalogAddedRemediation dueRansomware use
CIRCL KEVJun 28, 2022n/aNot reported
Industry KEV feedJun 28, 2022n/aNot reported

Affected Products

1 affected entries in total
ProductAffected versionsFixed in
Ruckus VriotCommscopeSee advisory1.5.1.0.21

Patched Releases

Ruckus Vriot

<=1.5.1.0.21

Timeline

  1. Publicly disclosed

    Oct 26, 2020

  2. Added to CIRCL KEV

    Jun 28, 2022

  3. Added to Industry KEV feed

    Jun 28, 2022

  4. Last updated

    Nov 21, 2024

Weakness Type

  • CWE-798 Use of Hard-coded Credentials

References

11 more references in the full CVE brief

FAQ

Common Questions.

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More vulnerabilities

Figures as of Oct 24, 2026. Compiled by Brandefense technologies from public vulnerability catalogs; scoring as described in How it works.

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