AMD EPYC/Athlon/Ryzen divide by zero

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability was found in AMD EPYC, Athlon and Ryzen. It has been classified as problematic. This vulnerability affects unknown code. The manipulation leads to divide by zero. This vulnerability is documented as CVE-2023-20588. There is not any exploit available.

Detailsinfo

A vulnerability was found in AMD EPYC, Athlon and Ryzen (unknown version). It has been rated as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a divide by zero vulnerability. Using CWE to declare the problem leads to CWE-369. The product divides a value by zero. Impacted is availability. The summary by CVE is:

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality. 

The weakness was released 08/08/2023. It is possible to read the advisory at amd.com. The identification of this vulnerability is CVE-2023-20588 since 10/27/2022. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 281815 (Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-116 (ALASKERNEL-5.4-2025-116)), 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 (281815). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.5

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 281815
Nessus Name: Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2025-116 (ALASKERNEL-5.4-2025-116)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2022 🔍
08/08/2023 +285 days 🔍
08/08/2023 +0 days 🔍
01/06/2026 +882 days 🔍

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2023-20588 (🔍)
GCVE (CVE): GCVE-0-2023-20588
GCVE (VulDB): GCVE-100-236591

Entryinfo

Created: 08/08/2023 21:23
Updated: 01/06/2026 12:31
Changes: 08/08/2023 21:23 (36), 09/02/2023 10:43 (11), 06/10/2024 21:20 (20), 01/06/2026 12:31 (3)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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