Cross-site request forgery in SoftBank Corp. Optical BB unit E-WMTA2.3
Priority LOW 39CWE-352Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-352.
Summary
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.
Why it matters now
EPSS 0.00551 46th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| SoftBank Corp. | Optical BB unit E-WMTA2.3 | all versions | — | No fix listed | CNA |
- Optical BB unit E-WMTA2.3 VendorSoftBank Corp. Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:softbank:optical_bb_unit_e-wmta_firmware:2.3:*:*:*:*:*:*:* | 2.3 | Vulnerable | SoftBank Corp. |
| cpe:2.3:h:softbank:optical_bb_unit_e-wmta:-:*:*:*:*:*:*:* | not specified by NVD | Running on | SoftBank Corp. |
- cpe:2.3:o:softbank:optical_bb_unit_e-wmta_firmware:2.3:*:*:*:*:*:*:* Versions 2.3 Vulnerable ·SoftBank Corp.
- cpe:2.3:h:softbank:optical_bb_unit_e-wmta:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·SoftBank Corp.
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20783
- 2026-10-03 Alias added: GHSA-m9rh-6hgx-mg26
References
Sources
- CVE-2021-20783 · CVE Program
- CVE-2021-20783 · NVD
- FIRST EPSS
- GHSA-m9rh-6hgx-mg26 · GitHub Advisory Database · CC BY 4.0
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