How severe is CVE-2020-5606?

CVE-2020-5606 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-5606 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-5606?

CVE-2020-5606 affects Buffalo Airstation Whr-g54s Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-5606?

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

When was CVE-2020-5606 published?

CVE-2020-5606 was published on 2020-09-18 and last updated on 2026-06-17.

CVE-2020-5606

CVE-2020-5606 is a medium-severity vulnerability in Buffalo Airstation Whr-g54s Firmware with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (56th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Buffalo Airstation Whr-g54s Firmware
Published: 2020-09-18
Last modified: 2026-06-17

Description

Cross-site scripting vulnerability in WHR-G54S firmware 1.43 and earlier allows remote attackers to inject arbitrary script via a specially crafted page.

Frequently asked questions

What is CVE-2020-5606?: Cross-site scripting vulnerability in WHR-G54S firmware 1.43 and earlier allows remote attackers to inject arbitrary script via a specially crafted page.
How severe is CVE-2020-5606?: CVE-2020-5606 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-5606 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (56th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-5606?: CVE-2020-5606 affects Buffalo Airstation Whr-g54s Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-5606?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-5606 published?: CVE-2020-5606 was published on 2020-09-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:buffalo:airstation_whr-g54s_firmware:*:*:*:*:*:*:*:*

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