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CVE-2023-28461

9.8, critical Known exploited Used in ransomware

Array Networks AG and vxAG ArrayOS Missing Authentication for Critical Function Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
9.8, critical critical CVSS v3.1
EPSS, next 30 days
68% higher than 99.3% of scored CVEs
Exploitation
Confirmed in the wild
Published
15 Mar 20233 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 25 Nov 2024 and links it to ransomware activity. US federal agencies had to remediate by 16 Dec 2024, a deadline that has passed.

Required action. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

Array Networks Array AG Series and vxAG (9.4.0.481 and earlier) allow remote code execution. An attacker can browse the filesystem on the SSL VPN gateway using a flags attribute in an HTTP header without authentication. The product could then be exploited through a vulnerable URL. The 2023-03-09 vendor advisory stated "a new Array AG release with the fix will be available soon."

Details

Vendor
Array Networks
Product
arrayos_ag
Weakness
CWE-287 (opens in a new tab)
Status
Analyzed
Updated
5 Aug 2026
Assigner
cve@mitre.org

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

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Array Networks CVEs

Every Array Networks CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2025-66644 Array Networks ArrayOS AG OS Command Injection Vulnerability KEV EPSS 3% 9.8, critical

Beyond this page

Is CVE-2023-28461 in your network?

This page tells you how dangerous CVE-2023-28461 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2023-28461 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 16 Oct 2026, not the live upstream state.