What is CVE-2023-28461?

CVE-2023-28461 is a critical-severity vulnerability in Arraynetworks Ag1000, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-03-15.

How severe is CVE-2023-28461?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2023-28461 known to be exploited?

Yes. CVE-2023-28461 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-11-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.

Auth bypass in Arraynetworks Ag1000

CVE-2023-28461

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."

Vulnerability class: Broken Authentication

Published 2023-03-15 · last modified 2026-08-05.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.681 (99.3th percentile), scored 2026-10-17.

High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.681 · newest: 0.681 · change: 0.000

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2024-11-25. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2024-12-16.

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

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

support.arraynetworks.net/prx/001/http/supportportal.arraynetworks.net/document… (Mitigation, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2023-28461?: CVE-2023-28461 is a critical-severity vulnerability in Arraynetworks Ag1000, classified under Improper Authentication. CVSS score: 9.8/10. Published 2023-03-15.
How severe is CVE-2023-28461?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2023-28461 known to be exploited?: Yes. CVE-2023-28461 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-11-25), indicating it is being actively exploited. 3 public proof-of-concept repositories are indexed.