CVE-2021-20128
CVE-2021-20128 is a medium-severity vulnerability in Draytek Vigorconnect 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: Draytek Vigorconnect
- Published:
- Last modified:
Description
The Profile Name field in the floor plan (Network Menu) page in Draytek VigorConnect 1.6.0-B3 was found to be vulnerable to stored XSS, as user input is not properly sanitized.
Frequently asked questions
- What is CVE-2021-20128?
- The Profile Name field in the floor plan (Network Menu) page in Draytek VigorConnect 1.6.0-B3 was found to be vulnerable to stored XSS, as user input is not properly sanitized.
- How severe is CVE-2021-20128?
- CVE-2021-20128 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-2021-20128 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-2021-20128?
- CVE-2021-20128 affects Draytek Vigorconnect. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2021-20128?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-20128 published?
- CVE-2021-20128 was published on 2021-10-13 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:draytek:vigorconnect:1.6.0:beta3:*:*:*:*:*:*
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