How severe is CVE-2020-35219?

CVE-2020-35219 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-35219 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-35219?

CVE-2020-35219 affects Asus Dsl-n17u Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-35219?

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

When was CVE-2020-35219 published?

CVE-2020-35219 was published on 2021-01-04 and last updated on 2026-06-17.

CVE-2020-35219

CVE-2020-35219 is a critical-severity vulnerability in Asus Dsl-n17u Firmware with a CVSS 3.x base score of 9.8. 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-287.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 2% (74th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Asus Dsl-n17u Firmware
Published: 2021-01-04
Last modified: 2026-06-17

Description

The ASUS DSL-N17U modem with firmware 1.1.0.2 allows attackers to access the admin interface by changing the admin password without authentication via a POST request to Advanced_System_Content.asp with the uiViewTools_username=admin&uiViewTools_Password= and uiViewTools_PasswordConfirm= substrings.

Frequently asked questions

What is CVE-2020-35219?: The ASUS DSL-N17U modem with firmware 1.1.0.2 allows attackers to access the admin interface by changing the admin password without authentication via a POST request to Advanced_System_Content.asp with the uiViewTools_username=admin&uiViewTools_Password= and uiViewTools_PasswordConfirm= substrings.
How severe is CVE-2020-35219?: CVE-2020-35219 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-35219 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (74th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-35219?: CVE-2020-35219 affects Asus Dsl-n17u Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-35219?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-35219 published?: CVE-2020-35219 was published on 2021-01-04 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:asus:dsl-n17u_firmware:1.1.0.2:*:*:*:*:*:*:*

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CVE-2017-14698 — Critical (CVSS 9.8): ASUS DSL-AC51, DSL-AC52U, DSL-AC55U, DSL-N55U C1, DSL-N55U D1, DSL-AC56U, DSL-N10_C1, DSL-N12U C1, DSL-N12E C1,…
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Other CWE-287 (Improper Authentication) vulnerabilities

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CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
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CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
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