CVE-2021-3223 (GCVE-0-2021-3223)

Vulnerability from cvelistv5 – Published: 2021-01-26 05:58 – Updated: 2024-08-03 16:53
VLAI Shadowserver Previdian
Summary
Node-RED-Dashboard before 2.26.2 allows ui_base/js/..%2f directory traversal to read files.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • n/a
Assigner
References
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7cdeaf45-3193-4bed-a896-264722ad97af

Vulnerability ID: CVE-2021-3223

Status: Confirmed

Status Updated: 2026-09-05 00:00 UTC

Exploited: Yes

Characteristics
Severity: 75.0
Timestamps
First Seen: 2023-10-14
Asserted: 2023-10-14
Last Seen: 2026-09-05
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Node-RED / Node-RED-Dashboard | Class: other-software | Severity: High (CVSS 7.5) | IoT: no | In CISA KEV: no | Honeypot connections on 2026-09-05: 1
Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details
1D 1
Iot no
Feed Shadowserver Foundation honeypot/exploited-vulnerabilities
Type http-scan
Class other-software
7D Avg 0
Vendor Node-RED
30D Avg 0
90D Avg 2
Product Node-RED-Dashboard
Cisa Kev no
Connections 1
Observation Date 2026-09-05
Vulnerability Class CVSS
Vulnerability Score 7.5
Vulnerability Severity High
References
Created: 2026-07-01 05:54 UTC | Updated: 2026-09-07 01:01 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d6cd0238-0c31-4fc7-a4b6-89e461cd6a97

Vulnerability ID: CVE-2021-3223

Status: Confirmed

Status Updated: 2026-04-14 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-04-14
Asserted: 2026-04-14
Scope
Notes: KEVIntel entry: Node-RED-Dashboard before 2.26.2 allows ui_base/js/..%2f directory traversal to read files. | Affected: Node-RED / Node-RED-Dashboard | CVSS: 7.5 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Node-RED-Dashboard before 2.26.2 allows ui_base/js/..%2f directory traversal to read files.
Vendor Node-RED
Product Node-RED-Dashboard
Added Date 2026-04-14T00:00:00.000Z
Cvss Score 7.5
Epss Score None
Cvss Severity HIGH
Epss Percentile None
Used In Malware unknown
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-06-19 12:42 UTC | Updated: 2026-06-19 12:42 UTC
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.