CVE-2020-5524
Aterm series (Aterm WF1200C firmware Ver1.2.1 and earlier, Aterm WG1200CR firmware Ver1.2.1 and earlier, Aterm WG2600HS firmware Ver1.3.2 and earlier) allows an attacker on the same network segment to execute arbitrary OS commands with root privileges…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Aterm series (Aterm WF1200C firmware Ver1.2.1 and earlier, Aterm WG1200CR firmware Ver1.2.1 and earlier, Aterm WG2600HS firmware Ver1.3.2 and earlier) allows an attacker on the same network segment to execute arbitrary OS commands with root privileges via UPnP function.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.02% probability · 63th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- nec/aterm wg2600hs firmware · nec/aterm wf1200c firmware · nec/aterm wg1200cr firmware
- Source
- vultures@jpcert.or.jp
EPSS 1.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://jpn.nec.com/security-info/secinfo/nv20-003.htmlNot Applicable, Third Party Advisory
- https://jvn.jp/en/jp/JVN49410695/index.htmlNot Applicable, Third Party Advisory
- https://jvn.jp/en/jp/JVN25766797/Third Party Advisory
- https://jpn.nec.com/security-info/secinfo/nv20-003.htmlNot Applicable, Third Party Advisory
- https://jvn.jp/en/jp/JVN49410695/index.htmlNot Applicable, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.