CVE-2023-20569

PoC —

CVSS 3.1

4.7 medium

EPSS

7%p94

Published

Aug 8, 2023 (Aug 8, 2023)

Modified

Jun 17, 2026

Description

A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative execution at an attacker-controlled address, potentially leading to information disclosure.

Vendors: fedoraproject debian amd microsoft
Products: fedora, debian linux, ryzen 9 5950x firmware, ryzen 9 5900x firmware, ryzen 9 5900 firmware, ryzen 9 pro 5945 firmware, ryzen 7 5800x3d firmware, ryzen 7 5800x firmware, ryzen 7 5800 firmware, ryzen 7 5700x firmware, ryzen 7 pro 5845 firmware, ryzen 5 5600x3d firmware
Weakness: CWE-203
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD CVE.org GitHub PoCs EPSS (7.3%)

In the news5 stories

Collide+Power, Downfall, and Inception: New Side

The Hacker NewsAug 10, 08:33 UTC · Aug 10, 2023Vulnerability CVE-2023-20583 CVE-2022-40982 CVE-2023-20569+3 CVEs

Microsoft Releases Patches for 74 New Vulnerabilities in August Update

The Hacker NewsAug 10, 03:31 UTC · Aug 10, 2023Vulnerability in the wildCVE-2023-20569 CVE-2023-36884 CVE-2023-35388+8 CVEs

New Interrupt Injection Attack Can Bypass Spectre v2 Defenses on Intel and AMD CPUs

The Hacker NewsAug 8, 10:51 UTC · Aug 8, 2026Vulnerability CVE-2023-20569

iLeakage: New Safari Exploit Impacts Apple iPhones and Macs with A- and M

The Hacker NewsNov 1, 08:32 UTC · Nov 1, 2023Vulnerability CVE-2023-20583 CVE-2022-40982 CVE-2023-20569

Downfall attacks can gather passwords, encryption keys from Intel processors

Help Net SecurityAug 9, 00:00 UTC · Aug 9, 2023Vulnerability CVE-2022-40982 CVE-2023-20593 CVE-2023-20569