How severe is CVE-2022-23973?

CVE-2022-23973 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-23973 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23973?

CVE-2022-23973 affects Asus Rt-ax56u Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23973?

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-2022-23973 published?

CVE-2022-23973 was published on 2022-04-07 and last updated on 2026-06-17.

CVE-2022-23973

CVE-2022-23973 is a high-severity vulnerability in Asus Rt-ax56u Firmware with a CVSS 3.x base score of 8.8. 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-787.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 5.8
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Asus Rt-ax56u Firmware
Published: 2022-04-07
Last modified: 2026-06-17

Description

ASUS RT-AX56U’s user profile configuration function is vulnerable to stack-based buffer overflow due to insufficient validation for parameter length. An unauthenticated LAN attacker can execute arbitrary code to perform arbitrary operations or disrupt service.

Frequently asked questions

What is CVE-2022-23973?: ASUS RT-AX56U’s user profile configuration function is vulnerable to stack-based buffer overflow due to insufficient validation for parameter length. An unauthenticated LAN attacker can execute arbitrary code to perform arbitrary operations or disrupt service.
How severe is CVE-2022-23973?: CVE-2022-23973 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-23973 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23973?: CVE-2022-23973 affects Asus Rt-ax56u Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23973?: 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-2022-23973 published?: CVE-2022-23973 was published on 2022-04-07 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-5787-b0e64-1.html

Affected products (1)

cpe:2.3:o:asus:rt-ax56u_firmware:3.0.0.4.386.45898:*:*:*:*:*:*:*

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