How severe is CVE-2021-28189?

CVE-2021-28189 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-28189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-28189?

CVE-2021-28189 primarily affects Asus Z10pr-d16 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-28189?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-28189 published?

CVE-2021-28189 was published on 2021-04-06 and last updated on 2026-06-17.

CVE-2021-28189

CVE-2021-28189 is a medium-severity vulnerability in Asus Z10pr-d16 Firmware with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-120.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
CVSS v2: 4.0
EPSS exploit prediction: 2% (76th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Asus Z10pr-d16 Firmware
Published: 2021-04-06
Last modified: 2026-06-17

Description

The SMTP configuration function in ASUS BMC’s firmware Web management page 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.

Frequently asked questions

What is CVE-2021-28189?: The SMTP configuration function in ASUS BMC’s firmware Web management page 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.
How severe is CVE-2021-28189?: CVE-2021-28189 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-28189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (76th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-28189?: CVE-2021-28189 primarily affects Asus Z10pr-d16 Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-28189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-28189 published?: CVE-2021-28189 was published on 2021-04-06 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:asus:z10pr-d16_firmware:1.14.51:*:*:*:*:*:*:*
cpe:2.3:o:asus:asmb8-ikvm_firmware:1.14.51:*:*:*:*:*:*:*
cpe:2.3:o:asus:z10pe-d16_ws_firmware:1.14.2:*:*:*:*:*:*:*

More vulnerabilities in Asus Z10pr-d16 Firmware

CVE-2021-28204 — High (CVSS 7.2): The specific function in ASUS BMC’s firmware Web management page (Modify user’s information function) does not…
CVE-2021-28203 — High (CVSS 7.2): The Web Set Media Image function in ASUS BMC’s firmware Web management page does not filter the specific parameter.…
CVE-2021-28205 — Medium (CVSS 4.9): The specific function in ASUS BMC’s firmware Web management page (Delete SOL video file function) does not filter the…
CVE-2021-28188 — Medium (CVSS 4.9): The specific function in ASUS BMC’s firmware Web management page (Modify user’s information function) does not…
CVE-2021-28187 — Medium (CVSS 4.9): The specific function in ASUS BMC’s firmware Web management page (Generate new SSL certificate) does not verify the…
CVE-2021-28186 — Medium (CVSS 4.9): The specific function in ASUS BMC’s firmware Web management page (ActiveX configuration-2 acquisition) does not…

All CVEs affecting Asus Z10pr-d16 Firmware →

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