← Vulnerability feed

Vulnerability record · CVE-2020-23591 · published 23 November 2022

CVE-2020-23591: Optilinknetwork op-xt71000n firmware unrestricted file upload vulnerability

Optilinknetwork · Op Xt71000n Firmware

A vulnerability in OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an attacker to upload arbitrary files through " /mgm_dev_upgrade.asp " which can "delete every file for Denial of Service (using 'rm -rf *.*' in the code), reverse connection (using '.asp' webshell), backdoor.

9.8 CVSS 3.1 Critical EPSS 1.2% · top 34.1% CWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

A vulnerability in OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an attacker to upload arbitrary files through " /mgm_dev_upgrade.asp " which can "delete every file for Denial of Service (using 'rm -rf *.*' in the code), reverse connection (using '.asp' webshell), backdoor.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/huzaifahussain98/CVE-2020-23591 Third Party Advisory
https://github.com/huzaifahussain98/CVE-2020-23591 Third Party Advisory

Track CVE-2020-23591 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2020-23584Optilinknetwork op-xt71000n firmware command injection vulnerabilityUnauthenticated remote code execution in OPTILINK OP-XT71000N, Hardware Version: V2.2 occurs when the attacker passes arbitrary commands with IP-ADDR…EPSS 41%9.8CVE-2020-23583Optilinknetwork op-xt71000n firmware command injection vulnerabilityOPTILINK 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…EPSS 2.3%8.8CVE-2020-23592Optilinknetwork op-xt71000n firmware cross-site request forgery vulnerabilityA vulnerability in OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an unauthenticated, remote attacker to con…EPSS 0.57%8.8CVE-2020-23585Optilinknetwork op-xt71000n firmware cross-site request forgery vulnerabilityA remote attacker can conduct a cross-site request forgery (CSRF) attack on OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1…EPSS 0.55%6.5CVE-2020-23589Optilinknetwork op-xt71000n firmware cross-site request forgery vulnerabilityA vulnerability in OPTILINK OP-XT71000N Hardware Version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an unauthenticated, remote attacker to con…EPSS 0.48%6.5CVE-2020-23590Optilinknetwork op-xt71000n firmware cross-site request forgery vulnerabilityA vulnerability in Optilink OP-XT71000N Hardware version: V2.2 , Firmware Version: OP_V3.3.1-191028 allows an unauthenticated remote attacker to cond…EPSS 0.45%6.5CVE-2020-23593Optilinknetwork op-xt71000n firmware cross-site request forgery vulnerabilityA vulnerability in OPTILINK OP-XT71000N Hardware Version: V2.2, Firmware Version: OP_V3.3.1-191028 allows an unauthenticated, remote attacker to cond…EPSS 0.46%6.5CVE-2020-23582Optilinknetwork op-xt71000n firmware cross-site request forgery vulnerabilityA vulnerability in the "/admin/wlmultipleap.asp" of optilink OP-XT71000N version: V2.2 could allow an unauthenticated, remote attacker to conduct a c…EPSS 0.45%

Source: NIST National Vulnerability Database (record CVE-2020-23591), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.