CVE-2021-20712
NEC · published 2021-04-26
Source record Collected from the National Vulnerability Database (NVD)
Description
Description by JPCERT/CC via the CVE Program.
Improper access control vulnerability in NEC Aterm WG2600HS firmware Ver1.5.1 and earlier, and Aterm WX3000HP firmware Ver1.1.2 and earlier allows a device connected to the LAN side to be accessed from the WAN side due to the defect in the IPv6 firewall function.
Filed by JPCERT/CC; not a statement by NEC.
Status at the source
- NVD status: Modified
Affected products, as the source lists them
| Vendor | Product | Versions |
|---|---|---|
| NEC Corporation | NEC Aterm devices | Aterm WG2600HS firmware Ver1.5.1 and earlier, and Aterm WX3000HP firmware Ver1.1.2 and earlier: affected |
Products named in NVD's CPE match criteria (2)
cpe:2.3:o:nec:aterm_wg2600hs_firmware:*:*:*:*:*:*:*:*cpe:2.3:o:nec:aterm_wx3000hp_firmware:*:*:*:*:*:*:*:*
DeSpy has not checked any unit, hardware revision or firmware. A product missing here is not a statement that it is unaffected.
Scores, as their sources published them
- CVSS 3.1: 5.3 MEDIUM — as published by NIST (Primary)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0: 5 MEDIUM — as published by NIST (Primary)
AV:N/AC:L/Au:N/C:P/I:N/A:N
DeSpy does not score records. These are the sources' own values.
Weaknesses
NVD-CWE-Other
Sources
References the source lists
- https://jpn.nec.com/security-info/secinfo/nv21-010.html
- https://jvn.jp/en/jp/JVN29739718/index.html
- https://jpn.nec.com/security-info/secinfo/nv21-010.html
- https://jvn.jp/en/jp/JVN29739718/index.html
Source dates: published 2021-04-26, last changed 2026-06-17. DeSpy's copy of this version is dated 2026-09-28.
This product uses the NVD API but is not endorsed or certified by the NVD.
CVE records: Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.
CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy.
CISA's Known Exploited Vulnerabilities catalog and CISA Vulnrichment data are CC0 1.0. CISA advisories are shown with the TLP label their document carries. No endorsement by CISA, DHS, NIST or MITRE is stated or implied.