CVE-2020-6866Network attack vector

Authenticated service interruption

Published Apr 30, 2020 · Updated Aug 4, 2024

Resource management error in ZTE ZXCTN 6500 2.10.00R3B87 allows remote authenticated users to interrupt service via a specific command. ZTE has not disclosed the affected resource, command, or incorrect resource-management operation. Administrative privileges are required, and the reported consequence is availability loss only; the public record does not distinguish a hang, crash, or reboot.

CVSS severity4.9
Medium
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource management error in ZTE ZXCTN 6500 2.10.00R3B87 allows remote authenticated users to interrupt service via a specific command. ZTE has not disclosed the affected resource, command, or incorrect resource-management operation. Administrative privileges are required, and the reported consequence is availability loss only; the public record does not distinguish a hang, crash, or reboot.

The record

CVE
CVE-2020-6866
Published
Apr 30, 2020
Updated
Aug 4, 2024
Vendor
ZTE Corporation
Product
ZXCTN 6500
Classifications
T1499.004
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 30, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=V2.10.00R3B87

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

ZTE Corporation · ZXCTN 6500version=V2.10.00R3B87

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:N/A:P
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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