How severe is CVE-2018-5999?

CVE-2018-5999 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-2018-5999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 87% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-5999?

CVE-2018-5999 affects Asus Asuswrt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-5999?

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-2018-5999 published?

CVE-2018-5999 was published on 2018-01-22 and last updated on 2026-06-17.

CVE-2018-5999

CVE-2018-5999 is a critical-severity vulnerability in Asus Asuswrt with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 87% places it in the 100th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 87% (100th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Asus Asuswrt
Published: 2018-01-22
Last modified: 2026-06-17

Description

An issue was discovered in AsusWRT before 3.0.0.4.384_10007. In the handle_request function in router/httpd/httpd.c, processing of POST requests continues even if authentication fails.

Frequently asked questions

What is CVE-2018-5999?: An issue was discovered in AsusWRT before 3.0.0.4.384_10007. In the handle_request function in router/httpd/httpd.c, processing of POST requests continues even if authentication fails.
How severe is CVE-2018-5999?: CVE-2018-5999 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-2018-5999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 87% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-5999?: CVE-2018-5999 affects Asus Asuswrt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-5999?: 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-2018-5999 published?: CVE-2018-5999 was published on 2018-01-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:asus:asuswrt:*:*:*:*:*:*:*:*

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