CVE-2021-20783 Cross-site request forgery in Optical BB unit E-WMTA2.3

High 8.8 Published Updated

A CSRF vulnerability allows remote attackers to hijack administrator sessions on SoftBank Optical BB units via crafted pages.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2021-20783?

CVE-2021-20783 is a high-severity vulnerability in SoftBank Optical BB unit E-WMTA2.3, published on 28 Jul 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-352

Which versions are affected by CVE-2021-20783?

It affects 1 product.

Products include Softbank Optical Bb Unit E-Wmta Firmware.

How do I fix CVE-2021-20783?

No fix has been published for CVE-2021-20783 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-20783 being exploited?

There is no known exploitation of CVE-2021-20783 in the wild and no public exploit code.

Sources

Also known as GHSA-m9rh-6hgx-mg26.

Is CVE-2021-20783 in your software?

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