CVE-2021-28187
ASUS BMC's firmware: buffer overflow - Generate new SSL certificate
The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
ASUS BMC's firmware: buffer overflow - Generate new SSL certificate
The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
- Record
CVE-2021-28187- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - Weakness
- CWE-120
- Updated
- 2026-11-02
EUVDEUVD-2021-14877
The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
- Record
EUVD-2021-14877- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q8v3-m5xx-vj46 No score
The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate)...
The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
- Record
GHSA-q8v3-m5xx-vj46- Weakness
- CWE-120
- Updated
- 2026-11-02
NVD
The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the string length entered by users, resulting in a Buffer overflow vulnerability. As obtaining the privileged permission, remote attackers use the leakage to abnormally terminate the Web service.
- Record
CVE-2021-28187- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Weakness
- CWE-120
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-28187 is a medium vulnerability (CVSS 4.9) in Asus Asmb8-ikvm Firmware, published April 6, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.14%, the 66th percentile. No source names a fixed version.