Cente Ipv6Application · Nxtech

CVE-2024-28957

MEDIUM · 5.3 CVSS v3.1 Published 2024-04-15
Fix available
A fix is available. Upgrade to after 2.30 or later.
See remediation →
62/100
Remediation priority · Elevated
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
Generation of predictable identifiers issue exists in Cente middleware TCP/IP Network Series. If this vulnerability is exploited, a remote unauthenticated attacker may interfere communications by predicting some packet header IDs 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 · moderate confidence

This vulnerability exists in Cente middleware TCP/IP Network Series where the software generates predictable identifiers (likely sequence numbers or packet IDs) in network packet headers. A remote unauthenticated attacker can predict these identifiers, allowing them to interfere with communications between devices using the affected middleware.

MitigationUpdate to a patched version of the Cente middleware when available, or implement network-level security controls such as firewalls or intrusion detection systems to monitor for anomalous traffic patterns that may indicate exploitation of predictable packet identifiers.

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
Cente Ipv6Application
Affected:<= 1.51
Cente Ipv6 Snmpv2Application
Affected:<= 2.30
Cente Ipv6 Snmpv3Application
Affected:<= 2.30
Cente Tcp\/ipv4Application
Affected:<= 1.41
Cente Tcp\/ipv4 Snmpv2Application
Affected:<= 2.30
Cente Tcp\/ipv4 Snmpv3Application
Affected:<= 2.30

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
None
Integrity
None
Availability
Low

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

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 if Cente middleware is installed
    Review software inventory, application dependencies, or system binaries to locate any Cente middleware components (search for 'Cente' or 'cente' in installed software listings, libraries, or embedded firmware)
    Affected if Cente middleware is present on the system
  2. Determine the specific Cente product and version
    Check the product documentation, binary metadata, or runtime version information for the exact product name (e.g., Nxtech Cente Tcp/ipv4, Nxtech Cente Ipv6, or SNMP variants) and its version number
    Affected if The installed version is at or below 1.51 for Ipv6 products, 1.41 for Tcp/ipv4 products, or 2.30 for SNMPv2/SNMPv3 variants
  3. Verify the network packet handling component is active
    Inspect system configuration or runtime status to confirm whether the TCP/IP or IPv6 network stack and packet sequence generation is enabled and in use
    Affected if The network packet handling module is active and processing network communications
  4. Check network exposure of the affected component
    Review network configuration, firewall rules, or exposed services to determine if the Cente middleware network interface is reachable from external or untrusted network segments
    Affected if The vulnerable component is network-accessible without protective filtering

A system is affected if it runs any Cente middleware product (Tcp/ipv4, Ipv6, or SNMP variants) at a version at or below the affected thresholds AND has the network packet handling component enabled and accessible.

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
Upgrade available Upgrade to a release after 2.30
Interim mitigation

Update to a patched version of the Cente middleware when available, or implement network-level security controls such as firewalls or intrusion detection systems to monitor for anomalous traffic patterns that may indicate exploitation of predictable packet identifiers.

Fix this in Cente Ipv6 Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2024-28957 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.

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-2024-28957 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
  • 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