What is CVE-2021-20680?

CVE-2021-20680 is a medium-severity vulnerability in Nec Aterm W1200ex, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-26.

How severe is CVE-2021-20680?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Nec Aterm W1200ex

CVE-2021-20680

Cross-site scripting vulnerability in NEC Aterm devices (Aterm WG1900HP2 firmware Ver.1.3.1 and earlier, Aterm WG1900HP firmware Ver.2.5.1 and earlier, Aterm WG1800HP4 firmware Ver.1.3.1 and earlier, Aterm WG1800HP3 firmware Ver.1.5.1 and earlier, Aterm WG1200HS2 firmware Ver.2.5.0 and earlier, Aterm WG1200HP3 firmware Ver.1.3.1 and earlier, Aterm WG1200HP2 firmware Ver.2.5.0 and earlier, Aterm W1200EX firmware Ver.1.3.1 and earlier, Aterm W1200EX-MS firmware Ver.1.3.1 and earlier, Aterm WG1200HS firmware all versions Aterm WG1200HP firmware all versions Aterm WF800HP firmware all versions Aterm WF300HP2 firmware all versions Aterm WR8165N firmware all versions Aterm W500P firmware all versions, and Aterm W300P firmware all versions) allows remote attackers to inject arbitrary script or HTML via unspecified vectors.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.008 (52.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

vultures@jpcert.or.jp (x_refsource_MISC, Vendor Advisory)
vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-20680?: CVE-2021-20680 is a medium-severity vulnerability in Nec Aterm W1200ex, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-04-26.
How severe is CVE-2021-20680?: Medium severity. CVSS v3 base score is 6.1 out of 10.