How severe is CVE-2021-0083?

CVE-2021-0083 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-0083 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0083?

CVE-2021-0083 affects Intel Optane Persistent Memory Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-0083?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-0083 published?

CVE-2021-0083 was published on 2021-08-11 and last updated on 2026-06-17.

CVE-2021-0083

CVE-2021-0083 is a medium-severity vulnerability in Intel Optane Persistent Memory Firmware with a CVSS 3.x base score of 4.4. 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: Medium (CVSS 3.x base score 4.4)
CVSS v2: 2.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Intel Optane Persistent Memory Firmware
Published: 2021-08-11
Last modified: 2026-06-17

Description

Improper input validation in some Intel(R) Optane(TM) PMem versions before versions 1.2.0.5446 or 2.2.0.1547 may allow a privileged user to potentially enable denial of service via local access.

Frequently asked questions

What is CVE-2021-0083?: Improper input validation in some Intel(R) Optane(TM) PMem versions before versions 1.2.0.5446 or 2.2.0.1547 may allow a privileged user to potentially enable denial of service via local access.
How severe is CVE-2021-0083?: CVE-2021-0083 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-0083 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0083?: CVE-2021-0083 affects Intel Optane Persistent Memory Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-0083?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-0083 published?: CVE-2021-0083 was published on 2021-08-11 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00512.html

Affected products (1)

cpe:2.3:o:intel:optane_persistent_memory_firmware:*:*:*:*:*:*:*:*

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