OS command injection in NEC Corporation Aterm WG2600HS
Priority MEDIUM 45CWE-78Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.
Summary
Aterm WG2600HS firmware Ver1.5.1 and earlier allows an attacker to execute arbitrary OS commands via unspecified vectors.
Why it matters now
EPSS 0.01359 71st 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 WG2600HS | firmware Ver1.5.1 and earlier | — | No fix listed | CNA |
- Aterm WG2600HS VendorNEC Corporation Affected firmware Ver1.5.1 and earlier Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:nec:aterm_wg2600hs_firmware:*:*:*:*:*:*:*:* | up to 1.5.1 | Vulnerable | NEC Corporation |
| cpe:2.3:h:nec:aterm_wg2600hs:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NEC Corporation |
- cpe:2.3:o:nec:aterm_wg2600hs_firmware:*:*:*:*:*:*:*:* Versions up to 1.5.1 Vulnerable ·NEC Corporation
- cpe:2.3:h:nec:aterm_wg2600hs:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NEC Corporation
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20711
- 2026-10-03 Alias added: GHSA-p4fr-76vx-7r7v
References
More NEC Corporation Aterm Wg2600hs Firmware vulnerabilities
- TI-2020-04494 OS command injection in NEC Corporation Aterm series CVSS 3.1HIGH 8.8
- TI-2020-04504 OS command injection in NEC Corporation Aterm WG2600HS CVSS 3.1HIGH 8.0
- TI-2020-04495 OS command injection in NEC Corporation Aterm series CVSS 3.1HIGH 8.0
- TI-2026-04024 OS command injection in NEC Platforms, Ltd. Aterm WG2600HS CVSS 4.0HIGH 7.1
- TI-2021-03934 OS command injection in NEC Aterm devices CVSS 3.1HIGH 7.2
- TI-2021-03935 Improper validation of integrity check value vulnerability in NEC Aterm WF1200CR firmware… CVSS 3.1HIGH 7.2
Sources
- CVE-2021-20711 · CVE Program
- CVE-2021-20711 · NVD
- FIRST EPSS
- GHSA-p4fr-76vx-7r7v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences