CVE-2021-28191 json
ASUS BMC's firmware: buffer overflow - Firmware update function
published 2021-04-06 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-14881
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.9%
- EPSS 1.9% chance of exploitation in 30 days, percentile 79%
- public exploits
- 0
- none known
Summary
The Firmware update 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.
Exploit prediction
1.87% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
Affected products
- ASUS BMC firmware for ASMB9-iKVM
- ASUS BMC firmware for RS720A-E9-RS24-E
- ASUS BMC firmware for RS700A-E9-RS4
- ASUS BMC firmware for RS700-E9-RS4
- ASUS BMC firmware for ESC4000 G4X
- ASUS BMC firmware for RS700-E9-RS12
- ASUS BMC firmware for RS100-E10-PI2
- ASUS BMC firmware for RS300-E10-PS4
- ASUS BMC firmware for RS300-E10-RS4
- ASUS BMC firmware for RS500A-E9-PS4
- ASUS BMC firmware for RS500A-E9-RS4
- ASUS BMC firmware for RS500A-E9 RS4
- ASUS BMC firmware for E700 G4
- ASUS BMC firmware for WS C422 PRO/SE
- ASUS BMC firmware for WS X299 PRO/SE
- ASUS BMC firmware for Z11PA-U12
- ASUS BMC firmware for Z11PA-U12/10G-2S
- ASUS BMC firmware for KNPA-U16
- ASUS BMC firmware for ESC4000 DHD G4
- ASUS BMC firmware for ESC4000 G4
- ASUS BMC firmware for RS720Q-E9-RS24-S
- ASUS BMC firmware for RS720Q-E9-RS8
- ASUS BMC firmware for RS720Q-E9-RS8-S
- ASUS BMC firmware for Z11PA-D8
- ASUS BMC firmware for Z11PA-D8C
- ASUS BMC firmware for RS720-E9-RS24-U
- ASUS BMC firmware for RS720-E9-RS8-G
- ASUS BMC firmware for RS500-E9-PS4
- ASUS BMC firmware for Pro E800 G4
- ASUS BMC firmware for RS500-E9-RS4
- ASUS BMC firmware for RS500-E9-RS4-U
- ASUS BMC firmware for RS520-E9-RS12-E
- ASUS BMC firmware for RS520-E9-RS8
- ASUS BMC firmware for ESC8000 G4
- ASUS BMC firmware for ESC8000 G4/10G
- ASUS BMC firmware for RS720-E9-RS12-E
- ASUS BMC firmware for WS C621E SAGE
- ASUS BMC firmware for RS500A-E10-PS4
- ASUS BMC firmware for RS500A-E10-RS4
- ASUS BMC firmware for RS700A-E9-RS12V2
- ASUS BMC firmware for RS700A-E9-RS4V2
- ASUS BMC firmware for RS720A-E9-RS12V2
- ASUS BMC firmware for RS720A-E9-RS24V2
- ASUS BMC firmware for Z11PR-D16
Classification
- Weakness
-
- CWE-120 Buffer Copy without Checking Size of Input
References
-
asus.com
/content/ASUS-Product-Security-Advisory/
vendor-advisory
-
asus.com
/tw/support/callus/
vendor-advisory
-
twcert.org.tw
/tw/cp-132-4561-062d0-1.html
third-party-advisory
Sources
- CVE List CVE-2021-28191
- NVD CVE-2021-28191
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