CVE-2023-30603Network attack vector

Remote administrator access via default Telnet credentials

Published Jun 2, 2023 · Updated Jan 8, 2025

Use of default credentials in Hitron CODA-5310 7.2.4.7.1b3 allows remote attackers to gain administrator access through Telnet. The Telnet service accepts a factory-default account and password without prompting the device owner to replace them. Network reachability to Telnet is sufficient; successful login permits viewing or modifying system data, arbitrary system operations, and service interruption.

CVSS severity9.8
Critical
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of default credentials in Hitron CODA-5310 7.2.4.7.1b3 allows remote attackers to gain administrator access through Telnet. The Telnet service accepts a factory-default account and password without prompting the device owner to replace them. Network reachability to Telnet is sufficient; successful login permits viewing or modifying system data, arbitrary system operations, and service interruption.

The record

CVE
CVE-2023-30603
Published
Jun 2, 2023
Updated
Jan 8, 2025
Vendor
Hitron Technologies Inc.
Product
CODA-5310
Classifications
CWE-1392, T1078.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 2, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 8, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v7.2.4.7.1b3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hitron Technologies Inc. · CODA-5310version=v7.2.4.7.1b3

Published CVSS scores

9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1392Use of Default Credentials
T1078.001Valid Accounts: Default Accounts

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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