dbcve.org
Rax30 FirmwareOperating system · Netgear

CVE-2023-27853

CRITICAL · 9.8 CVSS v3.1 Published 2023-03-10
Fix available
A fix is available. Upgrade to 1.0.10.94 or later.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
NETGEAR Nighthawk WiFi6 Router prior to V1.0.10.94 contains a format string vulnerability in a SOAP service that could allow an attacker to execute arbitrary code on the device.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

A format string vulnerability exists in the SOAP service of NETGEAR Nighthawk WiFi6 routers prior to firmware version V1.0.10.94. The vulnerability allows an attacker to inject format string specifiers into log output or other string-handling routines within the SOAP service, potentially leading to stack corruption and arbitrary code execution. The issue is exploitable remotely without authentication given the SOAP interface accessibility.

MitigationUpdate NETGEAR Nighthawk WiFi6 Router firmware to version V1.0.10.94 or later to patch the format string vulnerability. If patching is not immediately possible, restrict network access to the SOAP service interface (typically port 5555) or disable UPnP if not required.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Rax30 FirmwareOperating system
Affected:< 1.0.10.94

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify the router model
    Locate the model number on the router device label or check the admin interface device info page
    Affected if The device is NOT a Netgear Rax30 model - other models are not affected by this specific CVE
  2. Check the installed firmware version
    Access the router admin web interface (typically at 192.168.1.1) and navigate to the Firmware Update or Administration section to view the current firmware version
    Affected if The firmware version is earlier than V1.0.10.94 (for example, V1.0.10.80, V1.0.9.28, etc.)
  3. Verify SOAP service accessibility
    Check if port 5555 (the typical SOAP service port) is open on the router by scanning the WAN IP address or checking the router's port forwarding/firewall settings
    Affected if Port 5555 is exposed to the WAN/internet or to an untrusted network segment
  4. Check UPnP status
    Access the router admin interface and locate the UPnP setting (usually under Advanced > Setup > UPnP or similar)
    Affected if UPnP is enabled and the SOAP service is accessible through it, as this may allow external access to the vulnerable service

You are affected if you have a Netgear Rax30 router with firmware version below V1.0.10.94 and the SOAP service (port 5555) is accessible either directly or through UPnP to untrusted networks.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.0.10.94 or later
Fixed in 1.0.10.94
Interim mitigation

Update NETGEAR Nighthawk WiFi6 Router firmware to version V1.0.10.94 or later to patch the format string vulnerability. If patching is not immediately possible, restrict network access to the SOAP service interface (typically port 5555) or disable UPnP if not required.

Recommended fix High confidence

Firmware version 1.0.10.94 or later

  1. 1. Log in to the NETGEAR Nighthawk Rax30 router web interface
  2. 2. Navigate to Administration > Firmware Update or similar menu option
  3. 3. Check the current firmware version under Router Info or Advanced settings
  4. 4. Download the latest firmware version 1.0.10.94 or later from the official NETGEAR support site
  5. 5. Upload the firmware file and allow the router to complete the update process
  6. 6. After reboot, verify the firmware version has been updated to 1.0.10.94 or newer

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Rax30 Firmware Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing4.0 h
  • Review / QA1.0 h
8.0 hours of engineering $1,360
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,176.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-27853 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

Get it on GitHub Scan in the browser

References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-27853 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data