How severe is CVE-2020-17409?

CVE-2020-17409 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-17409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-17409?

CVE-2020-17409 primarily affects Netgear R6020 Firmware. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-17409?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-17409 published?

CVE-2020-17409 was published on 2020-10-13 and last updated on 2026-06-17.

CVE-2020-17409

CVE-2020-17409 is a medium-severity vulnerability in Netgear R6020 Firmware with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-288.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 3.3
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-288
Affected product: Netgear R6020 Firmware
Published: 2020-10-13
Last modified: 2026-06-17

Description

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10754.

Frequently asked questions

What is CVE-2020-17409?: This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of NETGEAR R6120, R6080, R6260, R6220, R6020, JNR3210, and WNR2020 routers with firmware 1.0.66. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mini_httpd service, which listens on TCP port 80 by default. The issue results from incorrect string matching logic when accessing protected pages. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-10754.
How severe is CVE-2020-17409?: CVE-2020-17409 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-17409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-17409?: CVE-2020-17409 primarily affects Netgear R6020 Firmware. In total, 11 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-17409?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-17409 published?: CVE-2020-17409 was published on 2020-10-13 and last updated on 2026-06-17.

References

Affected products (11)

cpe:2.3:o:netgear:r6020_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6080_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6120_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6220_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6230_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6260_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6330_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6350_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:r6850_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:netgear:jnr3210_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:netgear:wnr2020_firmware:-:*:*:*:*:*:*:*

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