CVE-2020-12109

Exp

Certain TP-Link devices allow Command Injection. This affects NC200 2.1.9 build 200225, NC210 1.0.9 build 200304, NC220 1.3.0 build 200304, NC230 1.3.0 build 200304, NC250 1.3.0 build 200304, NC260 1.5.2 build 200304, and NC450 1.5.3 build 200304.

Published: 2020-05-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12109 is rated High Exploit Risk (85.5/100): CVSS High severity, with high exploitation likelihood (EPSS 81.61%, 99th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-12109

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-12109

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-02 80.99% 81.61% +0.62%
2 2026-01-23 82.22% 80.99% -1.23%
3 2025-12-27 — 82.22% —

Full EPSS history (23 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12109

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
9.0 2.0 HIGH
AV:N/AC:L/Au:S/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 10.0 [email protected]

Weakness enumeration for CVE-2020-12109

Affected software / configurations for CVE-2020-12109

Vendor Product Version Raw CPE
tp-link nc200_firmware 2.1.6 cpe:2.3:o:tp-link:nc200_firmware:2.1.6:160108_b:*:*:*:*:*:*
tp-link nc200_firmware 2.1.9 cpe:2.3:o:tp-link:nc200_firmware:2.1.9:200225:*:*:*:*:*:*
tp-link nc210_firmware 1.0.3 cpe:2.3:o:tp-link:nc210_firmware:1.0.3:160229:*:*:*:*:*:*
tp-link nc210_firmware 1.0.4 cpe:2.3:o:tp-link:nc210_firmware:1.0.4:160412:*:*:*:*:*:*
tp-link nc210_firmware 1.0.9 cpe:2.3:o:tp-link:nc210_firmware:1.0.9:200304:*:*:*:*:*:*
tp-link nc220_firmware 1.2.0 cpe:2.3:o:tp-link:nc220_firmware:1.2.0:170516:*:*:*:*:*:*
tp-link nc220_firmware 1.3.0 cpe:2.3:o:tp-link:nc220_firmware:1.3.0:180105:*:*:*:*:*:*
tp-link nc220_firmware 1.3.0 cpe:2.3:o:tp-link:nc220_firmware:1.3.0:200304:*:*:*:*:*:*
tp-link nc230_firmware 1.0.3 cpe:2.3:o:tp-link:nc230_firmware:1.0.3:160108:*:*:*:*:*:*
tp-link nc230_firmware 1.2.1 cpe:2.3:o:tp-link:nc230_firmware:1.2.1:170515:*:*:*:*:*:*
tp-link nc230_firmware 1.3.0 cpe:2.3:o:tp-link:nc230_firmware:1.3.0:200304:*:*:*:*:*:*
tp-link nc250_firmware 1.0.8 cpe:2.3:o:tp-link:nc250_firmware:1.0.8:160108:*:*:*:*:*:*
tp-link nc250_firmware 1.0.10 cpe:2.3:o:tp-link:nc250_firmware:1.0.10:160321:*:*:*:*:*:*
tp-link nc250_firmware 1.2.1 cpe:2.3:o:tp-link:nc250_firmware:1.2.1:170515:*:*:*:*:*:*
tp-link nc250_firmware 1.3.0 cpe:2.3:o:tp-link:nc250_firmware:1.3.0:200304:*:*:*:*:*:*
tp-link nc260_firmware 1.0.5 cpe:2.3:o:tp-link:nc260_firmware:1.0.5:160804:*:*:*:*:*:*
tp-link nc260_firmware 1.0.6 cpe:2.3:o:tp-link:nc260_firmware:1.0.6:161114:*:*:*:*:*:*
tp-link nc260_firmware 1.4.1 cpe:2.3:o:tp-link:nc260_firmware:1.4.1:180720:*:*:*:*:*:*
tp-link nc260_firmware 1.5.0 cpe:2.3:o:tp-link:nc260_firmware:1.5.0:181123:*:*:*:*:*:*
tp-link nc260_firmware 1.5.2 cpe:2.3:o:tp-link:nc260_firmware:1.5.2:200304:*:*:*:*:*:*
tp-link nc450_firmware 1.0.15 cpe:2.3:o:tp-link:nc450_firmware:1.0.15:160920:*:*:*:*:*:*
tp-link nc450_firmware 1.1.2 cpe:2.3:o:tp-link:nc450_firmware:1.1.2:161013:*:*:*:*:*:*
tp-link nc450_firmware 1.3.4 cpe:2.3:o:tp-link:nc450_firmware:1.3.4:171130:*:*:*:*:*:*
tp-link nc450_firmware 1.5.3 cpe:2.3:o:tp-link:nc450_firmware:1.5.3:200304:*:*:*:*:*:*

References for CVE-2020-12109

cvelogic Threat Intelligence