Cross-site scripting in NEC Corporation Aterm WF800HP
Priority LOW 29CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Cross-site scripting vulnerability in Aterm WF800HP firmware Ver1.0.9 and earlier allows remote attackers to inject an arbitrary script via unspecified vectors.
Why it matters now
EPSS 0.01057 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| NEC Corporation | Aterm WF800HP | Aterm WF800HP firmware Ver1.0.9 and earlier | — | No fix listed | CNA |
- Aterm WF800HP VendorNEC Corporation Affected Aterm WF800HP firmware Ver1.0.9 and earlier Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20620
- 2026-10-03 Alias added: GHSA-mhmg-wv9c-8hpm
References
More NEC Corporation vulnerabilities
- TI-1999-00042 Command execution via shell metachars in INN daemon (innd) 1.5 using "newgroup" and… CVSS 3.1CRITICAL 9.8
- TI-2020-13174 XML external entity injection in NEC Corporation ExpressCluster CVSS 3.1HIGH 7.5
- TI-1999-00009 Inverse query buffer overflow in BIND 4.9 and BIND 8 Releases. CVSS 2.0HIGH 10.0
- TI-2018-08402 NEC Univerge Sv9100 WebPro 6.00.00 devices have Predictable Session IDs that result in… CVSS 3.1CRITICAL 9.8
- TI-2018-08403 NEC Univerge Sv9100 WebPro 6.00.00 devices have Cleartext Password Storage in the Web UI. CVSS 3.1CRITICAL 9.8
- TI-1999-00205 rpc.ypupdated (NIS) allows remote users to execute arbitrary commands. CVSS 2.0HIGH 10.0
Sources
- CVE-2021-20620 · CVE Program
- CVE-2021-20620 · NVD
- FIRST EPSS
- GHSA-mhmg-wv9c-8hpm · GitHub Advisory Database · CC BY 4.0
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