Medium severity · published Apr 26, 2021
CVE-2021-20712
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…
5.3
CVSS
0.8%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 56% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AW
Aterm Wg2600hs Firmware · Nec
through 1.5.1 · source: NVD
AW
Aterm Wx3000hp Firmware · Nec
through 1.1.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-20712
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-20712
Mitigation
https://jpn.nec.com/security-info/secinfo/nv21-010.html
Third Party Advisory
https://jvn.jp/en/jp/JVN29739718/index.html
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