CVE-2023-20593

high-risk
Published 2023-07-24

An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access sensitive information.

Do I need to act?

~
5.9% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (20)

Xen
Xen
Xen
Xen
Ryzen 5 3500 Firmware
Ryzen 5 3500X Firmware
Ryzen 9 3900 Firmware
Ryzen 9 3900Xt Firmware

Affected Vendors

Debian Xen Amd

References (70)

Not Applicable http://seclists.org/fulldisclosure/2023/Jul/43
Mailing List http://www.openwall.com/lists/oss-security/2023/07/24/3
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/1
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/12
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/13
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/14
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/15
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/16
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/17
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/5
Mailing List http://www.openwall.com/lists/oss-security/2023/07/25/6
Mailing List http://www.openwall.com/lists/oss-security/2023/07/26/1
Mailing List http://www.openwall.com/lists/oss-security/2023/07/31/2
http://www.openwall.com/lists/oss-security/2023/08/08/6
http://www.openwall.com/lists/oss-security/2023/08/08/7
http://www.openwall.com/lists/oss-security/2023/08/08/8
http://www.openwall.com/lists/oss-security/2023/08/16/4
http://www.openwall.com/lists/oss-security/2023/08/16/5
http://www.openwall.com/lists/oss-security/2023/09/22/11
http://www.openwall.com/lists/oss-security/2023/09/22/9
and 50 more references
55
/ 100
high-risk
Severity 18/34 · Moderate
Exploitability 9/34 · Low
Exposure 28/34 · Critical