How severe is CVE-2021-0001?

CVE-2021-0001 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-0001 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-0001?

CVE-2021-0001 primarily affects Intel Integrated Performance Primitives Cryptography. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-0001?

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

When was CVE-2021-0001 published?

CVE-2021-0001 was published on 2021-06-09 and last updated on 2026-06-17.

CVE-2021-0001

CVE-2021-0001 is a medium-severity vulnerability in Intel Integrated Performance Primitives Cryptography with a CVSS 3.x base score of 4.7. 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-203.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 2.1
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-203
Affected product: Intel Integrated Performance Primitives Cryptography
Published: 2021-06-09
Last modified: 2026-06-17

Description

Observable timing discrepancy in Intel(R) IPP before version 2020 update 1 may allow authorized user to potentially enable information disclosure via local access.

Frequently asked questions

What is CVE-2021-0001?: Observable timing discrepancy in Intel(R) IPP before version 2020 update 1 may allow authorized user to potentially enable information disclosure via local access.
How severe is CVE-2021-0001?: CVE-2021-0001 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over local access with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-0001 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-0001?: CVE-2021-0001 primarily affects Intel Integrated Performance Primitives Cryptography. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-0001?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-0001 published?: CVE-2021-0001 was published on 2021-06-09 and last updated on 2026-06-17.

References

https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00477.html

Affected products (12)

cpe:2.3:a:intel:integrated_performance_primitives_cryptography:2019:-:*:*:*:*:*:*
cpe:2.3:a:intel:integrated_performance_primitives_cryptography:2019:update_1:*:*:*:*:*:*
cpe:2.3:a:intel:integrated_performance_primitives_cryptography:2019:update_2:*:*:*:*:*:*
cpe:2.3:a:intel:integrated_performance_primitives_cryptography:2019:update_3:*:*:*:*:*:*
cpe:2.3:a:intel:integrated_performance_primitives_cryptography:2019:update_4:*:*:*:*:*:*
cpe:2.3:a:intel:integrated_performance_primitives_cryptography:2020:-:*:*:*:*:*:*
cpe:2.3:a:intel:sgx_dcap:*:*:*:*:*:linux:*:*
cpe:2.3:a:intel:sgx_dcap:*:*:*:*:*:windows:*:*
cpe:2.3:a:intel:sgx_psw:*:*:*:*:*:windows:*:*
cpe:2.3:a:intel:sgx_psw:*:*:*:*:*:linux:*:*
cpe:2.3:a:intel:sgx_sdk:*:*:*:*:*:windows:*:*
cpe:2.3:a:intel:sgx_sdk:*:*:*:*:*:linux:*:*

More vulnerabilities in Intel Integrated Performance Primitives Cryptography

CVE-2023-35121 — High (CVSS 7.8): Improper access control in the Intel(R) oneAPI DPC++/C++ Compiler before version 2022.2.1 for some Intel(R) oneAPI…
CVE-2022-26083 — High (CVSS 7.5): Generation of weak initialization vector in an Intel(R) IPP Cryptography software library before version 2021.5 may…
CVE-2024-21784 — Medium (CVSS 6.7): Uncontrolled search path for some Intel(R) IPP Cryptography software before version 2021.11 may allow an authenticated…
CVE-2023-22355 — Medium (CVSS 6.7): Uncontrolled search path in some Intel(R) oneAPI Toolkit and component software installers before version 4.3.0.251 may…
CVE-2023-29162 — Medium (CVSS 6.0): Improper buffer restrictions the Intel(R) C++ Compiler Classic before version 2021.8 for Intel(R) oneAPI Toolkits…
CVE-2021-33147 — Medium (CVSS 5.5): Improper conditions check in the Intel(R) IPP Crypto library before version 2021.2 may allow an authenticated user to…

All CVEs affecting Intel Integrated Performance Primitives Cryptography →

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