CVE-2023-20593

MEDIUM

Xen - Error Information Exposure

Title source: rule
STIX 2.1

Description

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

Exploits (1)

nomisec WORKING POC 8 stars
by sbaresearch · poc
https://github.com/sbaresearch/stop-zenbleed-win

References (35)

Core 35
Core References
Mailing List, Mitigation, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/26/1
Mailing List, Mitigation, Patch, Third Party Advisory
http://www.openwall.com/lists/oss-security/2023/07/31/2
Mitigation, Patch, Vendor Advisory
http://xenbits.xen.org/xsa/advisory-433.html

Scores

CVSS v3 5.5
EPSS 0.0588
EPSS Percentile 90.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-209
Status published
Products (50)
amd/athlon_gold_7220u_firmware
amd/epyc_7232p_firmware
amd/epyc_7252_firmware
amd/epyc_7262_firmware
amd/epyc_7272_firmware
amd/epyc_7282_firmware
amd/epyc_7302_firmware
amd/epyc_7302p_firmware
amd/epyc_7352_firmware
amd/epyc_7402_firmware
... and 40 more
Published Jul 24, 2023
Tracked Since Feb 18, 2026