How severe is CVE-2021-0115?

CVE-2021-0115 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-0115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0115?

CVE-2021-0115 primarily affects Intel Atom C3308. In total, 681 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-0115?

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

When was CVE-2021-0115 published?

CVE-2021-0115 was published on 2022-02-09 and last updated on 2026-06-17.

CVE-2021-0115

CVE-2021-0115 is a medium-severity vulnerability in Intel Atom C3308 with a CVSS 3.x base score of 6.7. 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: Medium (CVSS 3.x base score 6.7)
CVSS v2: 4.6
EPSS exploit prediction: 0% (25th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Intel Atom C3308
Published: 2022-02-09
Last modified: 2026-06-17

Description

Buffer overflow in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.

Frequently asked questions

What is CVE-2021-0115?: Buffer overflow in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable escalation of privilege via local access.
How severe is CVE-2021-0115?: CVE-2021-0115 has a CVSS 3.x base score of 6.7, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-0115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0115?: CVE-2021-0115 primarily affects Intel Atom C3308. In total, 681 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-0115?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-0115 published?: CVE-2021-0115 was published on 2022-02-09 and last updated on 2026-06-17.

References

Affected products (681)

cpe:2.3:h:intel:atom_c3308:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3336:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3338:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3338r:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3436l:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3508:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3538:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3558:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3558r:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3708:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3750:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3758:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3758r:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3808:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3830:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3850:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3858:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3950:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3955:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:atom_c3958:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-1000g1:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-1000g4:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-1005g1:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10100:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10100e:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10100f:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10100t:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10100te:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10100y:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10105:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10105f:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10105t:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10110u:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10110y:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10300:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10300t:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10305:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10305t:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10320:-:*:*:*:*:*:*:*
cpe:2.3:h:intel:core_i3-10325:-:*:*:*:*:*:*:*

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