How severe is CVE-2020-12109?

CVE-2020-12109 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12109 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12109?

CVE-2020-12109 primarily affects Tp-link Nc200 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-12109?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2020-12109 published?

CVE-2020-12109 was published on 2020-05-04 and last updated on 2026-06-17.

CVE-2020-12109

CVE-2020-12109 is a high-severity vulnerability in Tp-link Nc200 Firmware with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 74% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-78.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 74% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-78
Affected product: Tp-link Nc200 Firmware
Published: 2020-05-04
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2020-12109?: 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.
How severe is CVE-2020-12109?: CVE-2020-12109 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12109 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 74% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12109?: CVE-2020-12109 primarily affects Tp-link Nc200 Firmware. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-12109?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-12109 published?: CVE-2020-12109 was published on 2020-05-04 and last updated on 2026-06-17.

References

Affected products (24)

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

More vulnerabilities in Tp-link Nc200 Firmware

CVE-2020-12110 — Critical (CVSS 9.8): Certain TP-Link devices have a Hardcoded Encryption Key. This affects NC200 2.1.9 build 200225, N210 1.0.9 build…
CVE-2020-13224 — High (CVSS 8.8): TP-LINK NC200 devices through 2.1.10 build 200401, NC210 devices through 1.0.10 build 200401, NC220 devices through…
CVE-2020-10231 — High (CVSS 7.5): TP-Link NC200 through 2.1.8_Build_171109, NC210 through 1.0.9_Build_171214, NC220 through 1.3.0_Build_180105, NC230…
CVE-2020-11445 — Medium (CVSS 5.3): TP-Link cloud cameras through 2020-02-09 allow remote attackers to bypass authentication and obtain sensitive…

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