How severe is CVE-2019-20082?

CVE-2019-20082 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-2019-20082 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-20082?

CVE-2019-20082 affects Asus Rt-n53 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-20082?

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-2019-20082 published?

CVE-2019-20082 was published on 2021-12-28 and last updated on 2026-06-17.

CVE-2019-20082

CVE-2019-20082 is a critical-severity vulnerability in Asus Rt-n53 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Asus Rt-n53 Firmware
Published: 2021-12-28
Last modified: 2026-06-17

Description

ASUS RT-N53 3.0.0.4.376.3754 devices have a buffer overflow via a long lan_dns1_x or lan_dns2_x parameter to Advanced_LAN_Content.asp.

Frequently asked questions

What is CVE-2019-20082?: ASUS RT-N53 3.0.0.4.376.3754 devices have a buffer overflow via a long lan_dns1_x or lan_dns2_x parameter to Advanced_LAN_Content.asp.
How severe is CVE-2019-20082?: CVE-2019-20082 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-2019-20082 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-20082?: CVE-2019-20082 affects Asus Rt-n53 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-20082?: 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-2019-20082 published?: CVE-2019-20082 was published on 2021-12-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:asus:rt-n53_firmware:3.0.0.4.376.3754:*:*:*:*:*:*:*

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