01 Record

CVE-2023-22655

Protection mechanism failure in some 3rd and 4th Generation Intel(R) Xeon(R) Processors when using Intel(R) SGX or Intel(R) TDX may allow a privileged user to potentially enable escalation of

MediumPUBLISHEDCNA: intel

CNA base score6.1 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N

View raw JSON

02 Description

Protection mechanism failure in some 3rd and 4th Generation Intel(R) Xeon(R) Processors when using Intel(R) SGX or Intel(R) TDX may allow a privileged user to potentially enable escalation of

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.24% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 15.8% of scored records. A rank, not a probability.

NVD base score

6.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-03-14 16:45Z2 YR AGO

Last updated

2025-02-13 16:44Z1 YR AGO

Reserved

2023-01-27

Assigning CNA

intel

Record state

PUBLISHED

Severity

Medium (CVSS 6.1)

CNA CVSS vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:N

Weaknesses

CWE-693Protection Mechanism FailurePillar

Data version

5.1

Document digest

eabd0b5f18bc40b11ee8ca285559a80b72209cb097a6d5251a1169c059adb8b2

05 Affected products

VendorProductVersionsPlatforms

n/a3rd and 4th Generation Intel(R) Xeon(R) Processors when using Intel(R) SGX or Intel(R) TDXSee references—

intel3rd_gen_intel_xeon_scalable_processor_family0 to < *—

intelxeon_d_processor0 to < *—

intel4th_generation_intel_xeon_platinum_processors0 to < *—

intel4th_generation_intel_xeon_gold_processors0 to < *—

intel4th_gen_intel_xeon_scalable_processors0 to < *—

intel4th_gen_intel_xeon_platinum_processors0 to < *—

intel4th_gen_intel_xeon_gold_processors0 to < *—

intel4th_gen_intel_xeon_silver_processors0 to < *—

intel4th_gen_intel_xeon_bronze_processors0 to < *—

intelxeon_cpu_max_series_processors0 to < *—

intel4th_gen_intel_xeon_scalable_processors_with_intel_vran0 to < *—

06 References

www.intel.comhttps://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00960.html
security.netapp.comhttps://security.netapp.com/advisory/ntap-20240405-0006/
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2024/05/msg00003.html

07 Fixed in

AlmaLinux 9

microcode_ctl
Fixed in 4:20240910-1.el9_5

CloudLinux 9

microcode_ctl
Fixed in 4:20240910-1.el9_5

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Debian 12

intel-microcode
Fixed in 3.20240312.1~deb12u1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

intel-microcode
Fixed in 3.20240312.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

intel-microcode
Fixed in 3.20240312.1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.