How severe is CVE-2018-17022?

CVE-2018-17022 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-17022 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-17022?

CVE-2018-17022 affects Asus Gt-ac5300 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-17022?

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

When was CVE-2018-17022 published?

CVE-2018-17022 was published on 2018-09-13 and last updated on 2026-06-17.

CVE-2018-17022

CVE-2018-17022 is a high-severity vulnerability in Asus Gt-ac5300 Firmware with a CVSS 3.x base score of 7.2. 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 8.0
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Asus Gt-ac5300 Firmware
Published: 2018-09-13
Last modified: 2026-06-17

Description

Stack-based buffer overflow on the ASUS GT-AC5300 router through 3.0.0.4.384_32738 allows remote attackers to cause a denial of service (device crash) or possibly have unspecified other impact by setting a long sh_path0 value and then sending an appGet.cgi?hook=select_list("Storage_x_SharedPath") request, because ej_select_list in router/httpd/web.c uses strcpy.

Frequently asked questions

What is CVE-2018-17022?: Stack-based buffer overflow on the ASUS GT-AC5300 router through 3.0.0.4.384_32738 allows remote attackers to cause a denial of service (device crash) or possibly have unspecified other impact by setting a long sh_path0 value and then sending an appGet.cgi?hook=select_list("Storage_x_SharedPath") request, because ej_select_list in router/httpd/web.c uses strcpy.
How severe is CVE-2018-17022?: CVE-2018-17022 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-17022 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-17022?: CVE-2018-17022 affects Asus Gt-ac5300 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-17022?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-17022 published?: CVE-2018-17022 was published on 2018-09-13 and last updated on 2026-06-17.

References

https://github.com/PAGalaxyLab/VulInfo/blob/master/ASUS/buffer_overflow/ASUS%20GT-AC5300%20stack%20overflow.MD

Affected products (1)

cpe:2.3:o:asus:gt-ac5300_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Asus Gt-ac5300 Firmware

CVE-2018-17023 — High (CVSS 8.8): Cross-site request forgery (CSRF) vulnerability on ASUS GT-AC5300 routers with firmware through 3.0.0.4.384_32738…
CVE-2018-17127 — High (CVSS 7.5): blocking_request.cgi on ASUS GT-AC5300 devices through 3.0.0.4.384_32738 allows remote attackers to cause a denial of…
CVE-2018-17020 — High (CVSS 7.5): ASUS GT-AC5300 devices with firmware through 3.0.0.4.384_32738 allow remote attackers to cause a denial of service via…
CVE-2018-17021 — Medium (CVSS 6.1): Cross-site scripting (XSS) vulnerability on ASUS GT-AC5300 devices with firmware through 3.0.0.4.384_32738 allows…

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