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No exploitation reported

CVE-2020-6871

No exploitation reported by the sources we read.

  • Published2020-07-20
  • WeaknessCWE-287

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The server management software module of ZTE has an authentication issue vulnerability, which allows users to skip the authentication of the server and execute some commands for high-level users. This affects: <R5300G4V03.08.0100/V03.07.0300/V03.07.0200/V03.07.0108/V03.07.0100/V03.05.0047/V03.05.0046/V03.05.0045/V03.05.0044/V03.05.0043/V03.05.0040/V03.04.0020;R8500G4V03.07.0103/V03.07.0101/V03.06.0100/V03.05.0400/V03.05.0020;R5500G4V03.08.0100/V03.07.0200/V03.07.0100/V03.06.0100>

Timeline

dates in UTC
  1. 2020-07-2018:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-6871?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-6871?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Zte r5300g4 firmwareversion to verify
BranchAffectedFixed in
3.4= 03.04.0020no fix published
3.5= 03.05.0040no fix published
3.5= 03.05.0043no fix published
3.5= 03.05.0044no fix published
3.5= 03.05.0045no fix published
3.5= 03.05.0046no fix published
3.5= 03.05.0047no fix published
3.7= 03.07.0100no fix published
3.7= 03.07.0108no fix published
3.7= 03.07.0200no fix published
3.7= 03.07.0300no fix published
3.8= 03.08.0100no fix published
Zte r8500g4 firmwareversion to verify
BranchAffectedFixed in
3.5= 03.05.0020no fix published
3.5= 03.05.0400no fix published
3.6= 03.06.0100no fix published
3.7= 03.07.0101no fix published
3.7= 03.07.0103no fix published
Zte r5500g4 firmwareversion to verify
BranchAffectedFixed in
3.6= 03.06.0100no fix published
3.7= 03.07.0100no fix published
3.7= 03.07.0200no fix published
3.8= 03.08.0100no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.19.8read 2026-10-23
  • NVDCVSS 2.07.5read 2026-10-23
  • NVDweakness (CWE)CWE-287read 2026-10-23
  • FIRST EPSSEPSS score1.9 %2026-10-22

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2020-07-20
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2020-6871?

The server management software module of ZTE has an authentication issue vulnerability, which allows users to skip the authentication of the server and execute some commands for high-level users. This affects: <R5300G4V03.08.0100/V03.07.0300/V03.07.0200/V03.07.0108/V03.07.0100/V03.05.0047/V03.05.0046/V03.05.0045/V03.05.0044/V03.05.0043/V03.05.0040/V03.04.0020;R8500G4V03.07.0103/V03.07.0101/V03.06.0100/V03.05.0400/V03.05.0020;R5500G4V03.08.0100/V03.07.0200/V03.07.0100/V03.06.0100>

Is CVE-2020-6871 actively exploited?

Active exploitation of CVE-2020-6871 has not been confirmed. Its EPSS score was 1.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-6871?

CVE-2020-6871 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

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