Public proof of concept

CVE-2020-23583

A public proof of concept exists; no exploitation attested.

Published2022-11-23
WeaknessCWE-77

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

OPTILINK OP-XT71000N V2.2 is vulnerable to Remote Code Execution. The issue occurs when the attacker sends an arbitrary code on "/diag_ping_admin.asp" to "PingTest" interface that leads to COMMAND EXECUTION. An attacker can successfully trigger the COMMAND and can compromise full system.

Timeline

dates in UTC

2022-11-2301:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub

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-2020-23583?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-23583?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Optilinknetwork op-xt71000n firmwareversion to verify

Branch	Affected	Fixed in	Source
3.3	= 3.3.1-191028	no fix published	NVD

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

Fix

No fix published by the sources we read yet. NVD record

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverifiedhuzaifahussain98/CVE-2020-23583

Sources

CISA-ADPSSVC decisionnone2025-04-25
OpenCVESSVC decisionnone—
CISA-ADPCVSS 3.19.82025-04-25
NVDCVSS 3.19.8read 2026-10-23
CISA-ADPweakness (CWE)CWE-772025-04-25
NVDweakness (CWE)CWE-77read 2026-10-23
FIRST EPSSEPSS score2.3 %2026-10-22
PoC-in-GitHubproof of concept1read 2026-10-23

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: 2022-11-23
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-23583?

Is CVE-2020-23583 actively exploited?

Active exploitation of CVE-2020-23583 has not been confirmed. Its EPSS score was 2.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-23583?

CVE-2020-23583 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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