An exploitable code execution vulnerability exists in the Shader functionality of AMD Radeon DirectX 11 Driver atidxx64.dll 26.20.15019.190…

published 2020-07-20 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27256

cvss: 9.9; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.7%; EPSS 2.7% chance of exploitation in 30 days, percentile 86%
public exploits: 0; none known

An exploitable code execution vulnerability exists in the Shader functionality of AMD Radeon DirectX 11 Driver atidxx64.dll 26.20.15019.19000. An attacker can provide a a specially crafted shader file to trigger this vulnerability, resulting in code execution. This vulnerability can be triggered from a HYPER-V guest using the RemoteFX feature, leading to executing the vulnerable code on the HYPER-V host (inside of the rdvgm.exe process). Theoretically this vulnerability could be also triggered from web browser (using webGL and webassembly).

Exploit prediction

2.71% chance of exploitation in the next 30 days, higher than 86% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

talosintelligence.com https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1042 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.9	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

n/a AMD

Classification

Weakness

CWE-787 Out-of-bounds Write

References

talosintelligence.com /vulnerability_reports/TALOS-2020-1042
exploit, third-party-advisory

Sources

CVE List CVE-2020-6102
NVD CVE-2020-6102

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary