CVE-2021-37386
Furukawa 423-41W/AC before v1.1.4 and LD421-21W before v1.3.3 were discovered to contain an HTML...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-37386- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List
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.
- Record
CVE-2021-37386- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-23955
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.
- Record
EUVD-2021-23955- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jjh9-589p-ccp8
Furukawa 423-41W/AC before v1.1.4 and LD421-21W before v1.3.3 were discovered to contain an HTML...
Furukawa 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.
- Record
GHSA-jjh9-589p-ccp8- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:H - Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-37386 is a high vulnerability (CVSS 7.5) in Furukawa 423-41w\/ac Firmware, published July 17, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.54%, the 45th percentile. No source names a fixed version.
References
cwe.mitre.org/data/definitions/79.html
owasp.org/www-project-web-security-testing-guide/latest/4-Web_Application_Security_Testing/11-Client-side_Testing/03-Testing_for_HTML_Injection
gist.githubusercontent.com/LuigiPolidorio/ec78daac7c3d97966f2e3703ca5d1685/raw/d64a487407d6f9685d3907206954a6c84c6fa621/reference.txt
softwall.com.br/cves/publicacao-rce-html-injection-furukawa
nvd.nist.gov/vuln/detail/CVE-2021-37386
github.com/advisories/GHSA-jjh9-589p-ccp8