AMD 1st Gen EPYC Processors INVD Instruction

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability was found in AMD 1st Gen EPYC Processors, 2nd Gen EPYC Processors and 3rd Gen EPYC Processors. It has been classified as problematic. Affected by this issue is some unknown functionality of the component INVD Instruction Handler. This manipulation causes an unknown weakness. This vulnerability is tracked as CVE-2023-20592. No exploit exists.

Detailsinfo

A vulnerability was found in AMD 1st Gen EPYC Processors, 2nd Gen EPYC Processors and 3rd Gen EPYC Processors (unknown version). It has been declared as problematic. Affected by this vulnerability is an unknown code block of the component INVD Instruction Handler. As an impact it is known to affect integrity. The summary by CVE is:

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 loss of guest virtual machine (VM) memory integrity.

The weakness was disclosed 11/14/2023. The advisory is shared at amd.com. This vulnerability is known as CVE-2023-20592 since 10/27/2022. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 235571 (RockyLinux 8 : linux-firmware (RLSA-2024:3178)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (235571). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Unknown
CWE: Unknown
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 235571
Nessus Name: RockyLinux 8 : linux-firmware (RLSA-2024:3178)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2022 🔍
11/14/2023 +383 days 🔍
11/14/2023 +0 days 🔍
05/08/2025 +541 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20592 (🔍)
GCVE (CVE): GCVE-0-2023-20592
GCVE (VulDB): GCVE-100-245257

Entryinfo

Created: 11/14/2023 20:07
Updated: 05/08/2025 07:55
Changes: 11/14/2023 20:07 (35), 12/09/2023 09:17 (11), 05/08/2025 07:55 (16)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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