Security readout for executives and security teams
Plain-English summary
CVE-2021-28181 is a buffer overflow in ASUS BMC firmware web management for remote video configuration. A privileged remote user could crash the BMC web service, affecting management availability. The sources do not claim data theft, system takeover, or active exploitation.
Executive priority
Treat as a management-plane availability issue. It is not a top-tier emergency based on provided evidence, but BMC outages can disrupt server administration and recovery workflows. Prioritize exposed or broadly accessible management interfaces first.
Technical view
The vulnerable ASUS BMC web page function fails to validate user-supplied string length in the remote video configuration setting. The stated impact is abnormal termination of the web service. CVSS 3.1 is 4.9: network reachable, low complexity, high privileges required, no user interaction, availability impact only.
Likely exposure
Exposure is limited to listed ASUS BMC firmware: Z10PR-D16 1.14.51, ASMB8-iKVM 1.14.51, and Z10PE-D16 WS 1.14.2. Risk is higher where BMC web management is reachable beyond a tightly controlled management network.
Exploitation context
The CVE is not listed as KEV in the provided bundle. Available sources indicate a remote attacker needs privileged permission. They do not provide evidence of public exploitation, exploit maturity, or unauthenticated access.
Researcher notes
Evidence is sparse. The vulnerability maps to CWE-120 and affects a specific remote video configuration setting. The CVSS vector requires high privileges and indicates availability-only impact. No patch version, exploit status, or deeper technical advisory details are included in the provided sources.
Mitigation direction
- Check ASUS advisory/support for firmware updates or replacement guidance for the listed BMC firmware versions.
- Restrict BMC web management access to a dedicated management network or VPN.
- Review BMC privileged accounts and remove stale administrator access.
- Monitor BMC web service crashes or unexpected restarts.
- Plan firmware maintenance after confirming vendor guidance applies to the affected asset.
Validation and detection
- Inventory ASUS BMC assets and record model and firmware version.
- Confirm whether versions match Z10PR-D16 1.14.51, ASMB8-iKVM 1.14.51, or Z10PE-D16 WS 1.14.2.
- Verify BMC web management is not internet-exposed.
- Review logs for abnormal BMC web service termination events.
- Confirm privileged BMC account ownership and recent activity.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-120: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-28181 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H1.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.9MediumVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.asus.com/content/ASUS-Product-Security-Advisory/CVE reference · x_refsource_MISC
- https://www.asus.com/tw/support/callus/CVE reference · x_refsource_MISC
- https://www.twcert.org.tw/tw/cp-132-4551-5dd2f-1.htmlCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.