How severe is CVE-2018-11491?

CVE-2018-11491 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-2018-11491 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-11491?

CVE-2018-11491 affects Asus Hg100 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-11491?

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-2018-11491 published?

CVE-2018-11491 was published on 2018-07-25 and last updated on 2026-06-17.

CVE-2018-11491

CVE-2018-11491 is a critical-severity vulnerability in Asus Hg100 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: 7% (93rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Asus Hg100 Firmware
Published: 2018-07-25
Last modified: 2026-06-17

Description

ASUS HG100 devices with firmware before 1.05.12 allow unauthenticated access, leading to remote command execution.

Frequently asked questions

What is CVE-2018-11491?: ASUS HG100 devices with firmware before 1.05.12 allow unauthenticated access, leading to remote command execution.
How severe is CVE-2018-11491?: CVE-2018-11491 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-2018-11491 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (93rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-11491?: CVE-2018-11491 affects Asus Hg100 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-11491?: 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-2018-11491 published?: CVE-2018-11491 was published on 2018-07-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:asus:hg100_firmware:*:*:*:*:*:*:*:*

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Other CWE-287 (Improper Authentication) vulnerabilities

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