01 Record

CVE-2023-20592

Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential

UnratedPUBLISHEDCNA: AMD

CNA base scoreUnratedNo CNA CVSS vector

View raw JSON

02 Description

Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential

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 ImpactpartialSuccessful exploitation gives limited 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

1.01% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 62.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

NVD analysis status

Modified. 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

2023-11-14 18:54Z2 YR AGO

Last updated

2024-10-11 18:07Z2 YR AGO

Reserved

2022-10-27

Assigning CNA

AMD

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

CWE-221Information Loss or OmissionClass

Data version

5.1

Document digest

ae745227e5849d5a10632b05decef6dd57281bcebd22cebd28eca4b80f8f1928

05 Affected products

VendorProductVersionsPlatforms

AMD1st Gen AMD EPYC™ Processorsvariousx86

AMD2nd Gen AMD EPYC™ Processorsvariousx86

AMD3rd Gen AMD EPYC™ Processorsvariousx86

06 References

www.amd.comhttps://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3005vendor-advisory

07 Fixed in

AlmaLinux 8

iwl100-firmware
Fixed in 39.31.5.1-121.el8.1
iwl1000-firmware
Fixed in 1:39.31.5.1-121.el8.1
iwl105-firmware
Fixed in 18.168.6.1-121.el8.1
iwl135-firmware
Fixed in 18.168.6.1-121.el8.1
iwl2000-firmware
Fixed in 18.168.6.1-121.el8.1
iwl2030-firmware
Fixed in 18.168.6.1-121.el8.1
iwl3160-firmware
Fixed in 1:25.30.13.0-121.el8.1
iwl3945-firmware
Fixed in 15.32.2.9-121.el8.1
iwl4965-firmware
Fixed in 228.61.2.24-121.el8.1
iwl5000-firmware
Fixed in 8.83.5.1_1-121.el8.1
iwl5150-firmware
Fixed in 8.24.2.2-121.el8.1
iwl6000-firmware
Fixed in 9.221.4.1-121.el8.1
iwl6000g2a-firmware
Fixed in 18.168.6.1-121.el8.1
iwl6000g2b-firmware
Fixed in 18.168.6.1-121.el8.1
iwl6050-firmware
Fixed in 41.28.5.1-121.el8.1
iwl7260-firmware
Fixed in 1:25.30.13.0-121.el8.1
libertas-sd8686-firmware
Fixed in 20240111-121.gitb3132c18.el8
libertas-sd8787-firmware
Fixed in 20240111-121.gitb3132c18.el8
libertas-usb8388-firmware
Fixed in 2:20240111-121.gitb3132c18.el8
libertas-usb8388-olpc-firmware
Fixed in 20240111-121.gitb3132c18.el8
linux-firmware
Fixed in 20240111-121.gitb3132c18.el8

CloudLinux 8

iwl100-firmware
Fixed in 39.31.5.1-121.el8.1
iwl1000-firmware
Fixed in 1:39.31.5.1-121.el8.1
iwl105-firmware
Fixed in 18.168.6.1-121.el8.1
iwl135-firmware
Fixed in 18.168.6.1-121.el8.1
iwl2000-firmware
Fixed in 18.168.6.1-121.el8.1
iwl2030-firmware
Fixed in 18.168.6.1-121.el8.1
iwl3160-firmware
Fixed in 1:25.30.13.0-121.el8.1
iwl3945-firmware
Fixed in 15.32.2.9-121.el8.1
iwl4965-firmware
Fixed in 228.61.2.24-121.el8.1
iwl5000-firmware
Fixed in 8.83.5.1_1-121.el8.1
iwl5150-firmware
Fixed in 8.24.2.2-121.el8.1
iwl6000-firmware
Fixed in 9.221.4.1-121.el8.1
iwl6000g2a-firmware
Fixed in 18.168.6.1-121.el8.1
iwl6000g2b-firmware
Fixed in 18.168.6.1-121.el8.1
iwl6050-firmware
Fixed in 41.28.5.1-121.el8.1
iwl7260-firmware
Fixed in 1:25.30.13.0-121.el8.1
libertas-sd8686-firmware
Fixed in 20240111-121.gitb3132c18.el8
libertas-sd8787-firmware
Fixed in 20240111-121.gitb3132c18.el8
libertas-usb8388-firmware
Fixed in 2:20240111-121.gitb3132c18.el8
libertas-usb8388-olpc-firmware
Fixed in 20240111-121.gitb3132c18.el8
linux-firmware
Fixed in 20240111-121.gitb3132c18.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Debian 12

amd64-microcode
Fixed in 3.20230719.1~deb12u1

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

Debian 13

amd64-microcode
Fixed in 3.20230719.1

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

Debian 14

amd64-microcode
Fixed in 3.20230719.1

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

Ubuntu 14.04 LTS

amd64-microcode
No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.