CVE-2022-40982

CVE-2022-40982 is a medium-severity vulnerability in Intel Microcode with a CVSS 3.x base score of 6.5. 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-203.

Key facts

• Severity: Medium (CVSS 3.x base score 6.5)
• EPSS exploit prediction: 4% (89th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-203
• Affected product: Intel Microcode
• Published: 2023-08-11
• Last modified: 2026-06-17

Description

Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Frequently asked questions

What is CVE-2022-40982?

Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

How severe is CVE-2022-40982?

CVE-2022-40982 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2022-40982 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40982?

CVE-2022-40982 primarily affects Intel Microcode. In total, 539 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-40982?

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

When was CVE-2022-40982 published?

CVE-2022-40982 was published on 2023-08-11 and last updated on 2026-06-17.

References

• http://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00828.html
• https://access.redhat.com/solutions/7027704
• https://aws.amazon.com/security/security-bulletins/AWS-2023-007/
• https://downfall.page
• https://lists.debian.org/debian-lts-announce/2023/08/msg00013.html
• https://lists.debian.org/debian-lts-announce/2023/08/msg00026.html
• https://lists.fedoraproject.org/archives/list/[email protected]/message/HKKYIK2EASDNUV4I7EFJKNBVO3KCKGRR/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/HKREYYTWUY7ZDNIB2N6H5BUJ3LE5VZPE/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/OL7WI2TJCWSZIQP2RIOLWHOKLM25M44J/
• https://lists.fedoraproject.org/archives/list/[email protected]/message/T7WO5JM74YJSYAE5RBV4DC6A4YLEKWLF/
• https://security.netapp.com/advisory/ntap-20230811-0001/
• https://www.debian.org/security/2023/dsa-5474
• https://www.debian.org/security/2023/dsa-5475
• https://xenbits.xen.org/xsa/advisory-435.html
• http://xenbits.xen.org/xsa/advisory-435.html

Affected products (539)

• cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
• cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:microcode:*:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2314_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2324g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2334_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2374g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2336_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2356g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2386g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2378_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2378g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_e-2388g_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1350_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1350p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1370_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1370p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1390t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1390_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:xeon_w-1390p_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i9-11900t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i9-11900f_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i9-11900_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i9-11900kf_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i9-11900k_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i7-11700t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i7-11700f_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i7-11700_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i7-11700kf_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i7-11700k_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11400t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11400f_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11400_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11500t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11500_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11600t_firmware:-:*:*:*:*:*:*:*
• cpe:2.3:o:intel:core_i5-11600_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Intel Microcode

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Browse all CWE-203 (Observable Discrepancy) vulnerabilities →