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Missing AuthenticationWeakness · CWE-306

CVE-2026-10577

CRITICAL · 10.0 CVSS v4.0 Published 2026-07-14
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click 5 weeks old

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
A security issue exists within the 1715-AENTR EtherNet/IP Adapter. The affected product exposes a network-accessible debug port that does not enforce proper privilege controls, allowing unauthenticated remote access to intrusive command-line interface (CLI) commands. If exploited, a threat actor could read or delete files, stop tasks, modify memory, and change I/O states, potentially impacting the confidentiality, integrity, and availability of 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

The 1715-AENTR EtherNet/IP Adapter contains an unauthenticated network-accessible debug port that exposes a command-line interface with privileged operations. An attacker with network access can execute intrusive CLI commands to read or delete files, stop device tasks, modify memory contents, and alter I/O states, compromising the device's confidentiality, integrity, and availability.

MitigationIsolate the affected device behind a firewall or within a VLAN with strict access controls to block the debug port from untrusted networks; contact the vendor for firmware updates that may address this authentication bypass.

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

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
Authentication
X
User interaction
None
Scope
X

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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 device model and firmware version
    Access the device's web interface, CLI, or management console and retrieve the exact model number (1715-AENTR) and installed firmware version. This is typically found under System Info, Device Status, or About sections.
    Affected if The device is a 1715-AENTR EtherNet/IP Adapter and the firmware version is unknown or unpatched (contact vendor for latest fixed version).
  2. Verify if debug port is listening on the network
    Perform a network port scan of the device IP address targeting common debug ports (such as 23/telnet, 22/ssh on unusual ports, or vendor-specific debug ports). Use tools like nmap: 'nmap -p 1-1000 <device_ip>' or check specifically for telnet and other debug services.
    Affected if Port scanning reveals an open debug port (commonly telnet or similar) that should not be network-accessible.
  3. Check if the debug CLI accepts commands without authentication
    Attempt to connect to the identified debug port (e.g., via telnet to the device IP) and observe whether it grants immediate CLI access without prompting for username/password credentials.
    Affected if Connection to the debug port provides immediate privileged CLI access without requiring any authentication credentials.
  4. Assess network exposure of the device
    Review network segmentation, firewall rules, and VLAN configuration to determine whether the device debug port is accessible from untrusted networks, the internet, or less-trusted network segments.
    Affected if The device debug port is reachable from untrusted networks or the internet due to insufficient network isolation or firewall rules.

A user is affected if they have a 1715-AENTR EtherNet/IP Adapter with an exposed, unauthenticated debug port accessible from their network, allowing remote attackers to execute privileged CLI commands.

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.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Isolate the affected device behind a firewall or within a VLAN with strict access controls to block the debug port from untrusted networks; contact the vendor for firmware updates that may address this authentication bypass.

Have this fixed Scoped from the published advisory
  • Consultation8.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA4.0 h
30.0 hours of engineering $5,380
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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-2026-10577 in production — separate from our analysis above.

No notes yet

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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
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  • Version or environment caveats, and links to real fixes
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