CVE-2020-23591

9.8 criticalEPSS 1.2%

Critical (9.8) in optilinknetwork op-xt71000n firmware. EPSS 1.2% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
CWE: CWE-434
Published: 2022-11-23
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

optilinknetwork:op-xt71000n_firmware

References

https://github.com/huzaifahussain98/CVE-2020-23591
https://github.com/huzaifahussain98/CVE-2020-23591

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