CVE-2022-26833 (GCVE-0-2022-26833)

Vulnerability from cvelistv5 – Published: 2022-05-25 20:15 – Updated: 2024-09-16 23:11
VLAI Previdian
Summary
An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A specially-crafted series of HTTP requests can lead to unauthenticated use of the REST API. An attacker can send a series of HTTP requests to trigger this vulnerability.
Severity
9.4 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
CWE
  • CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
Credits
Discovered by Jared Rittle of Cisco Talos.
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 11936a93-d50a-4e0e-b027-9ae7bcc71bd7

Vulnerability ID: CVE-2022-26833

Status: Confirmed

Status Updated: 2025-08-01 02:00 CEST

Exploited: Yes

Timestamps
First Seen: 2025-08-01
Asserted: 2025-08-01
Scope
Notes: An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A... | Affected: Open Automation Software / OAS Platform | CVSS: 9.4 (CRITICAL) | EPSS: 0.37639 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A...
Cve Id CVE-2022-26833
Vendor Open Automation Software
Ghsa Id None
Product OAS Platform
Added Date 2025-08-01T00:00:00.000Z
Cvss Score 9.4
Epss Score 0.37639
Previous Ids
Cvss Severity CRITICAL
Virtual Patch False
Cvss Estimated False
Epss Percentile 0.98496
Used In Malware unknown
Vulnerability Id CVE-2022-26833
Ahead Of Cisa Kev None
Not Yet In Cisa Kev True
References
Created: 2026-10-02 09:09 CEST | Updated: 2026-10-02 09:09 CEST
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

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.



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