# CVE-2023-20569 — AMD Ryzen™ 3000 Series Desktop Processors

> As of 2024-09-23, CVE-2023-20569 is a vulnerability in AMD Ryzen™ 3000 Series Desktop Processors, EPSS 7.3% (94.2th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2023-20569, most recently “TONTOU: Interrupt-Injection Attack Bypasses Spectre v2 (eIBRS/Safe RET) Defenses on Intel and AMD CPUs”.

**Last updated:** 2024-09-23

## What is CVE-2023-20569?

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.

12 affected-product entries are recorded, across 2 vendors, listed below. The identifier was first published 1174 days ago.

## Severity and exploitation probability

- **EPSS (FIRST):** 7.3% probability of exploitation in the next 30 days, higher than 94.2% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 5.8/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2023-08-08, last modified 2024-09-23

## Is CVE-2023-20569 being exploited?

Weaponised exploit code for CVE-2023-20569 is publicly available. 1 public proof-of-concept repository is tracked for this identifier. It currently carries a trending score of 37 in the Threadlinqs vulnerability feed.

- [trickest/cve](https://github.com/trickest/cve/blob/main/2023/CVE-2023-20569.md) (trickest)

## Affected products and versions

- [AMD](https://intel.threadlinqs.com/vendors/amd): Ryzen™ 3000 Series Desktop Processors, Ryzen™ PRO 3000 Series Desktop Processors, Ryzen™ 3000 Series Desktop Processors with Radeon™ Graphics, Ryzen™ PRO 3000 Series Processors with Radeon™ Vega Graphics, Athlon™ 3000 Series Processors with Radeon™ Graphics, Athlon™ PRO 3000 Series Processors with Radeon™ Vega Graphics, Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics, Ryzen™ PRO 4000 Series Desktop Processors, Ryzen™ 5000 Series Desktop Processors, Ryzen™ 5000 Series Desktop Processors with Radeon™ Graphics, Ryzen™ Threadripper™ 2000 Series Processors
- **Ryzen™ PRO 5000 Series Desktop Processors**: Ryzen™ PRO 5000 Series Desktop Processors

## How to fix CVE-2023-20569

No vendor patch reference has been recorded for CVE-2023-20569 in the tracked sources. Follow the references below for a fix, and treat the products listed above as exposed until the vendor states otherwise.

## Threat activity tracking CVE-2023-20569

1 tracked threat in the Threadlinqs corpus references CVE-2023-20569, either in the campaign’s CVE list or as an indicator on the campaign record.

- [TONTOU: Interrupt-Injection Attack Bypasses Spectre v2 (eIBRS/Safe RET) Defenses on Intel and AMD CPUs](https://intel.threadlinqs.com/threat/TL-2026-1954) — HIGH · 2026-08-06

## Sources

Enriched from CVE.org, FIRST EPSS, GitHub Security Advisories, public proof-of-concept repositories. Last verified by Threadlinqs on 2026-10-10.

**Vendor advisory and patch**

- [amd.com — vendor advisory](https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7005)

**Other references**

- [xenbits.xen.org](http://xenbits.xen.org/xsa/advisory-434.html)
- [openwall.com](http://www.openwall.com/lists/oss-security/2023/08/08/4)
- [comsec.ethz.ch](https://comsec.ethz.ch/research/microarch/inception/)
- [lists.fedoraproject.org](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/L4E4TZNMLYL2KETY23IPA43QXFAVJ46V/)
- [lists.fedoraproject.org (PKK3IA63LSKM4EC3TN4UM6DDEIOWEQIG)](https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKK3IA63LSKM4EC3TN4UM6DDEIOWEQIG/)

_Showing 6 of 11 recorded references._

Canonical: https://intel.threadlinqs.com/cve/CVE-2023-20569
Full detection coverage and IOCs for threats exploiting CVE-2023-20569 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp