How severe is CVE-2020-26122?

CVE-2020-26122 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-26122 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-26122?

CVE-2020-26122 primarily affects Inspur Nf8480m5 Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-26122?

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-2020-26122 published?

CVE-2020-26122 was published on 2020-12-07 and last updated on 2026-06-17.

CVE-2020-26122

CVE-2020-26122 is a high-severity vulnerability in Inspur Nf8480m5 Firmware with a CVSS 3.x base score of 7.2. 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-347.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v2: 6.5
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-347
Affected product: Inspur Nf8480m5 Firmware
Published: 2020-12-07
Last modified: 2026-06-17

Description

Inspur NF5266M5 through 3.21.2 and other server M5 devices allow remote code execution via administrator privileges. The Baseboard Management Controller (BMC) program of INSPUR server is weak in checking the firmware and lacks the signature verification mechanism, the attacker who obtains the administrator's rights can control the BMC by inserting malicious code into the firmware program and bypassing the current verification mechanism to upgrade the BMC.

Frequently asked questions

What is CVE-2020-26122?: Inspur NF5266M5 through 3.21.2 and other server M5 devices allow remote code execution via administrator privileges. The Baseboard Management Controller (BMC) program of INSPUR server is weak in checking the firmware and lacks the signature verification mechanism, the attacker who obtains the administrator's rights can control the BMC by inserting malicious code into the firmware program and bypassing the current verification mechanism to upgrade the BMC.
How severe is CVE-2020-26122?: CVE-2020-26122 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-26122 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-26122?: CVE-2020-26122 primarily affects Inspur Nf8480m5 Firmware. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-26122?: 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-2020-26122 published?: CVE-2020-26122 was published on 2020-12-07 and last updated on 2026-06-17.

References

Affected products (15)

cpe:2.3:o:inspur:nf8480m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf8260m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:ns5162m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:ns5488m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:ns5484m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:ns5482m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5280m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5468m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5488m5-d_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5180m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5270m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5260m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5266m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5466m5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:inspur:nf5486m5_firmware:*:*:*:*:*:*:*:*

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