TI-2021-15341 Aliases CVE-2021-37386 GHSA-jjh9-589p-ccp8

Furukawa Electric LatAm 423-41W/AC before v1.1.4 and LD421-21W before v1.3.3 were…

LOW 34CWE-79Published 2023-07-17 · Updated 2024-10-29

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

Furukawa Electric LatAm 423-41W/AC before v1.1.4 and LD421-21W before v1.3.3 were discovered to contain an HTML injection vulnerability via the serial number update function.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00544 45th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPE	Versions	Role	Vendor
cpe:2.3:o:furukawa:423-41w\/ac_firmware::::::::	before 1.2.0	Vulnerable	Furukawa
cpe:2.3:h:furukawa:423-41w\/ac:-:::::::*	not specified by NVD	Running on	Furukawa
cpe:2.3:o:furukawa:ld421-21w_firmware::::::::	before 1.5.0	Vulnerable	Furukawa
cpe:2.3:h:furukawa:ld421-21w:-:::::::*	not specified by NVD	Running on	Furukawa
cpe:2.3:o:furukawa:ld420-10r_firmware::::::::	before 1.4.0	Vulnerable	Furukawa
cpe:2.3:h:furukawa:ld420-10r:-:::::::*	not specified by NVD	Running on	Furukawa
cpe:2.3:o:furukawa:ld421-21wv_firmware::::::::	before 1.5.0	Vulnerable	Furukawa
cpe:2.3:h:furukawa:ld421-21wv:-:::::::*	not specified by NVD	Running on	Furukawa

cpe:2.3:o:furukawa:423-41w\/ac_firmware:*:*:*:*:*:*:*:* Versions before 1.2.0 Vulnerable ·Furukawa
cpe:2.3:h:furukawa:423-41w\/ac:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Furukawa
cpe:2.3:o:furukawa:ld421-21w_firmware:*:*:*:*:*:*:*:* Versions before 1.5.0 Vulnerable ·Furukawa
cpe:2.3:h:furukawa:ld421-21w:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Furukawa
cpe:2.3:o:furukawa:ld420-10r_firmware:*:*:*:*:*:*:*:* Versions before 1.4.0 Vulnerable ·Furukawa
cpe:2.3:h:furukawa:ld420-10r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Furukawa
cpe:2.3:o:furukawa:ld421-21wv_firmware:*:*:*:*:*:*:*:* Versions before 1.5.0 Vulnerable ·Furukawa
cpe:2.3:h:furukawa:ld421-21wv:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Furukawa

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2021-37386
2026-10-03 Alias added: GHSA-jjh9-589p-ccp8

References

Advisory 1

https://gist.githubusercontent.com/LuigiPolidorio/ec78daac7c3d97966f2e3703ca5d1685/raw/d64a487407d6f9685d3907206954a6c84c6fa621/reference.txt

Other 3

TI-2021-15340 RCE (Remote Code Execution) vulnerability was found in some Furukawa ONU models, this… CVSS 3.1CRITICAL 9.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences