Vulnary
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Critical· 9.8actively exploited

CVE-2023-28461

Array Networks Array AG Series and vxAG firmware up to 9.4.0.481 allow attackers to read files and execute code via a specially crafted HTTP header, without needing authentication. The flaw can be triggered remotely, giving full control over the device.

publishedMar 15, 2023
last modifiedAug 5, 2026
sourcesNVD · CISA-KEV
severity · cvss
9.8
critical · how bad it is
exploitation · epss
68%
99th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 19, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Array Networks Array AG Series and vxAG devices running firmware 9.4.0.481 or earlier.

02

Real-world impact

An attacker could read any file on the device and run arbitrary code, effectively taking full control of the VPN gateway and potentially exposing corporate networks.

03

Why this severity

The CVSS score of 9.8 reflects that the vulnerability allows remote code execution with no authentication and has complete confidentiality, integrity, and availability impact.

04

What to do about it

no official fix yet
interim mitigations
  • Follow the vendor's mitigation guidance as outlined in the advisory.
  • If no mitigations are available, discontinue use of the product.

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

CISA KEV required action

05

Timeline

  1. Mar 15, 2023 · Mar 15, 2023
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Nov 25, 2024 · Nov 25, 2024
    Confirmed exploited (CISA KEV)
    CISA added it to the Known Exploited Vulnerabilities catalog — attackers are using it in the wild.
  3. Dec 16, 2024 · Dec 16, 2024
    CISA remediation deadline
    Federal agencies are required to remediate by this date.
  4. Aug 5, 2026 · 1d ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone needed
ScopeUnchanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →