How severe is CVE-2022-26673?

CVE-2022-26673 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2022-26673 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-2022-26673?

CVE-2022-26673 affects Asus Rt-ax88u Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-26673?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2022-26673 published?

CVE-2022-26673 was published on 2022-04-22 and last updated on 2026-06-17.

CVE-2022-26673

CVE-2022-26673 is a medium-severity vulnerability in Asus Rt-ax88u Firmware with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Asus Rt-ax88u Firmware
Published: 2022-04-22
Last modified: 2026-06-17

Description

ASUS RT-AX88U has insufficient filtering for special characters in the HTTP header parameter. A remote attacker with general user privilege can exploit this vulnerability to inject JavaScript and perform Stored Cross-Site Scripting (XSS) attacks.

Frequently asked questions

What is CVE-2022-26673?: ASUS RT-AX88U has insufficient filtering for special characters in the HTTP header parameter. A remote attacker with general user privilege can exploit this vulnerability to inject JavaScript and perform Stored Cross-Site Scripting (XSS) attacks.
How severe is CVE-2022-26673?: CVE-2022-26673 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2022-26673 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-2022-26673?: CVE-2022-26673 affects Asus Rt-ax88u Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-26673?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2022-26673 published?: CVE-2022-26673 was published on 2022-04-22 and last updated on 2026-06-17.

References

https://www.twcert.org.tw/tw/cp-132-6042-6cc0f-1.html

Affected products (1)

cpe:2.3:o:asus:rt-ax88u_firmware:*:*:*:*:*:*:*:*

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CVE-2023-34360 — High (CVSS 8.2): A stored cross-site scripting (XSS) issue was discovered within the Custom User Icons functionality of ASUS RT-AX88U…
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