How severe is CVE-2017-5721?

CVE-2017-5721 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-5721 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-5721?

CVE-2017-5721 primarily affects Intel Nuc7i7bnh Firmware. In total, 50 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2017-5721?

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-2017-5721 published?

CVE-2017-5721 was published on 2017-10-11 and last updated on 2026-06-17.

CVE-2017-5721

CVE-2017-5721 is a high-severity vulnerability in Intel Nuc7i7bnh Firmware with a CVSS 3.x base score of 7.5. 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-20.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 4.4
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Intel Nuc7i7bnh Firmware
Published: 2017-10-11
Last modified: 2026-06-17

Description

Insufficient input validation in system firmware for Intel NUC7i3BNK, NUC7i3BNH, NUC7i5BNK, NUC7i5BNH, NUC7i7BNH versions BN0049 and below allows local attackers to execute arbitrary code via manipulation of memory.

Frequently asked questions

What is CVE-2017-5721?: Insufficient input validation in system firmware for Intel NUC7i3BNK, NUC7i3BNH, NUC7i5BNK, NUC7i5BNH, NUC7i7BNH versions BN0049 and below allows local attackers to execute arbitrary code via manipulation of memory.
How severe is CVE-2017-5721?: CVE-2017-5721 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-5721 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-5721?: CVE-2017-5721 primarily affects Intel Nuc7i7bnh Firmware. In total, 50 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2017-5721?: 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-2017-5721 published?: CVE-2017-5721 was published on 2017-10-11 and last updated on 2026-06-17.

References

https://security-center.intel.com/advisory.aspx?intelid=INTEL-SA-00084&languageid=en-fr

Affected products (50)

cpe:2.3:o:intel:nuc7i7bnh_firmware:ayaplcel.86a.0041:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:bnkbl357.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:ccsklm5v.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:ccsklm30.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:dnkbli5v.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:dnkbli30.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:kyskli70.86a.0050:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:rybdwi35.86a.0366:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:syskli35.86a.0062:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i7bnh_firmware:tybyt20h.86a.0015:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:ayaplcel.86a.0041:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:bnkbl357.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:ccsklm5v.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:ccsklm30.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:dnkbli5v.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:dnkbli30.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:kyskli70.86a.0050:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:rybdwi35.86a.0366:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:syskli35.86a.0062:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnh_firmware:tybyt20h.86a.0015:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:ayaplcel.86a.0041:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:bnkbl357.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:ccsklm5v.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:ccsklm30.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:dnkbli5v.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:dnkbli30.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:kyskli70.86a.0050:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:rybdwi35.86a.0366:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:syskli35.86a.0062:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i5bnk_firmware:tybyt20h.86a.0015:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:ayaplcel.86a.0041:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:bnkbl357.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:ccsklm5v.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:ccsklm30.86a.0052:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:dnkbli5v.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:dnkbli30.86a.0026:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:kyskli70.86a.0050:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:rybdwi35.86a.0366:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:syskli35.86a.0062:*:*:*:*:*:*:*
cpe:2.3:o:intel:nuc7i3bnh_firmware:tybyt20h.86a.0015:*:*:*:*:*:*:*

More vulnerabilities in Intel Nuc7i7bnh Firmware

CVE-2017-5700 — High (CVSS 8.4): Insufficient protection of password storage in system firmware for Intel NUC7i3BNK, NUC7i3BNH, NUC7i5BNK, NUC7i5BNH,…
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CVE-2017-5701 — High (CVSS 7.1): Insecure platform configuration in system firmware for Intel NUC7i3BNK, NUC7i3BNH, NUC7i5BNK, NUC7i5BNH, NUC7i7BNH…
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