How severe is CVE-2022-36339?

CVE-2022-36339 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-2022-36339 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-36339?

CVE-2022-36339 primarily affects Intel Cm8i3cb4n Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-36339?

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-2022-36339 published?

CVE-2022-36339 was published on 2023-05-10 and last updated on 2026-06-17.

CVE-2022-36339

CVE-2022-36339 is a high-severity vulnerability in Intel Cm8i3cb4n 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)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Intel Cm8i3cb4n Firmware
Published: 2023-05-10
Last modified: 2026-06-17

Description

Improper input validation in firmware for Intel(R) NUC 8 Compute Element, Intel(R) NUC 11 Compute Element, Intel(R) NUC 12 Compute Element may allow a privileged user to enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2022-36339?: Improper input validation in firmware for Intel(R) NUC 8 Compute Element, Intel(R) NUC 11 Compute Element, Intel(R) NUC 12 Compute Element may allow a privileged user to enable escalation of privilege via local access.
How severe is CVE-2022-36339?: CVE-2022-36339 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-2022-36339 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-36339?: CVE-2022-36339 primarily affects Intel Cm8i3cb4n Firmware. In total, 13 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-36339?: 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-2022-36339 published?: CVE-2022-36339 was published on 2023-05-10 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00777.html

Affected products (13)

cpe:2.3:o:intel:cm8i3cb4n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm8i5cb8n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm8i7cb8n_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm8ccb4r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm8pcb4r_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm11ebi38w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm11ebi58w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm11ebi716w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:cm11ebc4w_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:elm12hbi3_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:elm12hbi5_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:elm12hbi7_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:intel:elm12hbc_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Intel Cm8i3cb4n Firmware

CVE-2022-34147 — High (CVSS 7.5): Improper input validation in BIOS firmware for some Intel(R) NUC 9 Extreme Laptop Kits, Intel(R) NUC Performance Kits,…
CVE-2022-37327 — Medium (CVSS 6.1): Improper input validation in BIOS firmware for Intel(R) NUC, Intel(R) NUC Performance Kit, Intel(R) NUC Performance…

All CVEs affecting Intel Cm8i3cb4n Firmware →

Other CWE-20 (Improper Input Validation) vulnerabilities

CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…

Browse all CWE-20 (Improper Input Validation) vulnerabilities →