CVE detail

CVE-2021-20783 — CVE-2021-20783

Published 2021-07-30 · Modified 2026-06-17 · Vendor softbank · Product optical_bb_unit_e-wmta_firmware · Source nvd

HIGH

severity

CVSS-derived band

8.8

CVSS v3

0–10 scale

0.0055

EPSS probability

exploitation probability, 30d

43.0%

EPSS percentile

percentile vs all CVEs

NOT LISTED

CISA KEV

known exploited catalog

Description

Cross-site request forgery (CSRF) vulnerability in Optical BB unit E-WMTA2.3 allows a remote attacker to hijack the authentication of administrators via a specially crafted page.

Remediation

No vendor-published fix data in our corpus for this CVE. Check the references below or the vendor's PSIRT / security advisories page.

References

cvedb.io · NVD · CISA KEV · FIRST EPSS · vendor advisories (CVE Program List v5). Informational only, no warranty — verify every remediation against the vendor advisory before acting on it. This product uses data from the NVD API but is not endorsed or certified by the NVD, CISA, FIRST.org or any vendor named. CVE® is a registered trademark of The MITRE Corporation.