CVE-2021-31252
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W,...
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, and SEMAC devices from CHIYU Technology that can be exploited by sending a link that has a specially crafted URL to convince the user to click on it.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, and SEMAC devices from CHIYU Technology that can be exploited by sending a link that has a specially crafted URL to convince the user to click on it.
- Record
CVE-2021-31252- CVSS 3.1
- 6.1 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-601
- Updated
- 2026-11-02
CVE List No score
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, and SEMAC devices from CHIYU Technology that can be exploited by sending a link that has a specially crafted URL to convince the user to click on it.
- Record
CVE-2021-31252- Updated
- 2026-11-02
EUVDEUVD-2021-18164 No score
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, and SEMAC devices from CHIYU Technology that can be exploited by sending a link that has a specially crafted URL to convince the user to click on it.
- Record
EUVD-2021-18164- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rgg4-cq58-9g4h No score
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W,...
An open redirect vulnerability exists in BF-630, BF-450M, BF-430, BF-431, BF631-W, BF830-W, Webpass, and SEMAC devices from CHIYU Technology that can be exploited by sending a link that has a specially crafted URL to convince the user to click on it.
- Record
GHSA-rgg4-cq58-9g4h- Weakness
- CWE-601
- Updated
- 2026-11-02
Affected products
- chiyu-tech bf-430 firmware
- chiyu-tech bf-431 firmware
- chiyu-tech bf-450m firmware
- chiyu-tech bf-630 firmware
- chiyu-tech bf-631w firmware
- chiyu-tech bf-830w firmware
- chiyu-tech semac d1 firmware
- chiyu-tech semac d2 firmware
- chiyu-tech semac d2 n300 firmware
- chiyu-tech semac d4 firmware
- chiyu-tech semac s1 osdp firmware
- chiyu-tech semac s2 firmware
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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-2021-31252 is a medium vulnerability (CVSS 6.1) in Chiyu-tech Bf-430 Firmware, published June 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 28.6%, the 98th percentile. No source names a fixed version.