- 4.9MediumCVSS base score
- 1.9%Exploitation in 30 daysEPSS · top 20% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The specific function in ASUS BMC’s firmware Web management page (ActiveX configuration-2 acquisition) 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.
Timeline
ID reserved
By twcert
- 25 days later
· 25 days later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| twcertCNA (assigner) | 3.1 | Medium4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 1.9% · top 20% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.9.
Affected products
ASUS · BMC firmware for Z10PR-D16
- affected 1.14.51
ASUS · BMC firmware for ASMB8-iKVM
- affected 1.14.51
ASUS · BMC firmware for Z10PE-D16 WS
- affected 1.14.2
What to do
Solution: update BMC's firmwares to the following versions: Z10PR-D16 1.16.1 ASMB8-iKVM 1.16.1 Z10PE-D16 WS 1.16.1
References
3
- https://www.asus.com/content/ASUS-Product-Security-Advisory/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.asus.com/tw/support/callus/ (opens in a new tab)x_refsource_MISCx_transferred
- https://www.twcert.org.tw/tw/cp-132-4556-ece3d-1.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2021-14876 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2021-28186)Record last updated .