CVE-2021-25134

The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE Cloudline CL4100 Gen10 Server; HPE Cloudline CL3100 Gen10 Server; HPE Cloudline CL5800 Gen10 Server BMC firmware has a local buffer overlfow in spx_restservice setremoteimageinfo_func function.

Published: 2021-01-29 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2021-25134 is rated Low Risk (39.8/100): CVSS High severity, with low exploitation likelihood (EPSS 0.32%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-25134

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.13% 0.32% +0.20%
2 2025-11-21 0.04% 0.13% +0.08%
3 2025-11-18 0.04%

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-25134

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
1.8 5.9 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
3.9 10.0 [email protected]

Weakness enumeration for CVE-2021-25134

Affected software / configurations for CVE-2021-25134

Vendor Product Version Raw CPE
hpe cloudline_cl3100_gen10_server_firmware 1.08.0.0 cpe:2.3:o:hpe:cloudline_cl3100_gen10_server_firmware:1.08.0.0:*:*:*:*:*:*:*
hpe cloudline_cl3100_gen10_server_firmware 1.10.0.0 cpe:2.3:o:hpe:cloudline_cl3100_gen10_server_firmware:1.10.0.0:*:*:*:*:*:*:*
hpe cloudline_cl4100_gen10_server_firmware 1.08.0.0 cpe:2.3:o:hpe:cloudline_cl4100_gen10_server_firmware:1.08.0.0:*:*:*:*:*:*:*
hpe cloudline_cl4100_gen10_server_firmware 1.10.0.0 cpe:2.3:o:hpe:cloudline_cl4100_gen10_server_firmware:1.10.0.0:*:*:*:*:*:*:*
hpe cloudline_cl5200_gen9_server_firmware 1.07.0.0 cpe:2.3:o:hpe:cloudline_cl5200_gen9_server_firmware:1.07.0.0:*:*:*:*:*:*:*
hpe cloudline_cl5800_gen10_server_firmware 1.08.0.0 cpe:2.3:o:hpe:cloudline_cl5800_gen10_server_firmware:1.08.0.0:*:*:*:*:*:*:*
hpe cloudline_cl5800_gen9_server_firmware 1.09.0.0 cpe:2.3:o:hpe:cloudline_cl5800_gen9_server_firmware:1.09.0.0:*:*:*:*:*:*:*

References for CVE-2021-25134

cvelogic Threat Intelligence