How severe is CVE-2021-25136?

CVE-2021-25136 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-25136 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-25136?

CVE-2021-25136 primarily affects Hpe Cloudline Cl3100 Gen10 Server Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-25136?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-25136 published?

CVE-2021-25136 was published on 2021-01-29 and last updated on 2026-06-17.

CVE-2021-25136

CVE-2021-25136 is a high-severity vulnerability in Hpe Cloudline Cl3100 Gen10 Server Firmware with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 0% (24th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Hpe Cloudline Cl3100 Gen10 Server Firmware
Published: 2021-01-29
Last modified: 2026-06-17

Description

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 setsolvideoremotestorage_func function.

Frequently asked questions

What is CVE-2021-25136?: 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 setsolvideoremotestorage_func function.
How severe is CVE-2021-25136?: CVE-2021-25136 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-25136 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (24th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-25136?: CVE-2021-25136 primarily affects Hpe Cloudline Cl3100 Gen10 Server Firmware. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-25136?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-25136 published?: CVE-2021-25136 was published on 2021-01-29 and last updated on 2026-06-17.

References

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf04073en_us

Affected products (7)

cpe:2.3:o:hpe:cloudline_cl3100_gen10_server_firmware:1.08.0.0:*:*:*:*:*:*:*
cpe:2.3:o:hpe:cloudline_cl3100_gen10_server_firmware:1.10.0.0:*:*:*:*:*:*:*
cpe:2.3:o:hpe:cloudline_cl4100_gen10_server_firmware:1.08.0.0:*:*:*:*:*:*:*
cpe:2.3:o:hpe:cloudline_cl4100_gen10_server_firmware:1.10.0.0:*:*:*:*:*:*:*
cpe:2.3:o:hpe:cloudline_cl5200_gen9_server_firmware:1.07.0.0:*:*:*:*:*:*:*
cpe:2.3:o:hpe:cloudline_cl5800_gen10_server_firmware:1.08.0.0:*:*:*:*:*:*:*
cpe:2.3:o:hpe:cloudline_cl5800_gen9_server_firmware:1.09.0.0:*:*:*:*:*:*:*

More vulnerabilities in Hpe Cloudline Cl3100 Gen10 Server Firmware

CVE-2021-25138 — High (CVSS 7.8): The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE…
CVE-2021-25137 — High (CVSS 7.8): The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE…
CVE-2021-25135 — High (CVSS 7.8): The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE…
CVE-2021-25134 — High (CVSS 7.8): The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE…
CVE-2021-25133 — High (CVSS 7.8): The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE…
CVE-2021-25132 — High (CVSS 7.8): The Baseboard Management Controller(BMC) in HPE Cloudline CL5800 Gen9 Server; HPE Cloudline CL5200 Gen9 Server; HPE…

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