CVE-2021-20783 — HIGH (8.8)

Vulnerability 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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Softbank	Optical Bb Unit E-Wmta Firmware	2.3
Softbank	Optical Bb Unit E-Wmta	-

Related Weaknesses (CWE)

CWE-352

References

https://jvn.jp/en/jp/JVN34364599/index.htmlThird Party Advisory
https://jvn.jp/en/jp/JVN34364599/index.htmlThird Party Advisory

FAQ

What is CVE-2021-20783?

CVE-2021-20783 is a vulnerability with a CVSS score of 8.8 (HIGH). 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.

How severe is CVE-2021-20783?

CVE-2021-20783 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-20783?

Check the references section above for vendor advisories and patch information. Affected products include: Softbank Optical Bb Unit E-Wmta Firmware, Softbank Optical Bb Unit E-Wmta.