CVE-2021-20712
Last modified
CVE-2021-20712 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.80% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nec | Aterm Wg2600hs Firmware | <= 1.5.1 |
| Nec | Aterm Wx3000hp Firmware | <= 1.1.2 |
References
- https://jpn.nec.com/security-info/secinfo/nv21-010.htmlMitigation, Vendor Advisory
- https://jvn.jp/en/jp/JVN29739718/index.htmlThird Party Advisory
- https://jpn.nec.com/security-info/secinfo/nv21-010.htmlMitigation, Vendor Advisory
- https://jvn.jp/en/jp/JVN29739718/index.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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