CVE-2021-46792

Time-of-check Time-of-use (TOCTOU) in the BIOS2PSP command may allow an attacker with a malicious BIOS to create a race condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon an S3 resume event potentially leading to a denial of service.

Published: 2023-05-09 Last update: 2025-01-28 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-46792 is rated Moderate Risk (45.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.42%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2021-46792

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-24 0.15% 0.42% +0.26%
2 2026-02-01 0.12% 0.15% +0.03%
3 2025-11-21 — 0.12% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-46792

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 [email protected]
5.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.2 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2021-46792

Affected software / configurations for CVE-2021-46792

Vendor Product Version Raw CPE
amd ryzen_5300g_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5300g_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5300ge_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5300ge_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5500_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5500_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5600_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5600_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5600g_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5600g_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5600ge_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5600ge_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5600x_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5600x_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5700g_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5700g_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5700ge_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5700ge_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5700x_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5700x_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5800_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5800_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5800x3d_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5800x3d_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5800x_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5800x_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5900_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5900_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5900x_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5900x_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5945wx_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5945wx_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5950x_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5950x_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5955wx_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5955wx_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5965wx_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5965wx_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5975wx_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5975wx_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_5995wx_firmware cezannepi-fp6_1.0.0.6 cpe:2.3:o:amd:ryzen_5995wx_firmware:cezannepi-fp6_1.0.0.6:*:*:*:*:*:*:*
amd ryzen_3100_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3100_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3100_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3100_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3100_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3100_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3300x_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3300x_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3300x_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3300x_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3300x_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3300x_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3500_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3500_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3500_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3500_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3500_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3500_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3500x_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3500x_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3500x_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3500x_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3500x_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3500x_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3600_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3600_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3600_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3600_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3600_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3600_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3600x_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3600x_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3600x_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3600x_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3600x_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3600x_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3600xt_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3600xt_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3600xt_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3600xt_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3600xt_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3600xt_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3800x_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3800x_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3800x_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3800x_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3800x_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3800x_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3800xt_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3800xt_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3800xt_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3800xt_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3800xt_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3800xt_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3900_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3900_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3900_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3900_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3900_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3900_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3900x_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3900x_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3900x_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3900x_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3900x_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3900x_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3900xt_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3900xt_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3900xt_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3900xt_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3900xt_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3900xt_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_3950x_firmware comboam4v2_pi_1.2.0.5 cpe:2.3:o:amd:ryzen_3950x_firmware:comboam4v2_pi_1.2.0.5:*:*:*:*:*:*:*
amd ryzen_3950x_firmware picasso_pi-fp5_1.0.0.4 cpe:2.3:o:amd:ryzen_3950x_firmware:picasso_pi-fp5_1.0.0.4:*:*:*:*:*:*:*
amd ryzen_3950x_firmware renoirpi-fp6_1.0.0.7 cpe:2.3:o:amd:ryzen_3950x_firmware:renoirpi-fp6_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_1200_\(af\)_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_1200_\(af\)_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_1200_\(af\)_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_1200_\(af\)_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_1600_\(af\)_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_1600_\(af\)_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_1600_\(af\)_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_1600_\(af\)_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2200g_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2200g_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2200g_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2200g_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2200ge_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2200ge_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2200ge_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2200ge_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2300x_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2300x_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2300x_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2300x_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2400g_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2400g_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2400g_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2400g_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2400ge_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2400ge_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2400ge_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2400ge_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2500x_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2500x_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2500x_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2500x_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2600_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2600_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2600_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2600_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_2600e_firmware pinnaclepi-am4_1.0.0.7 cpe:2.3:o:amd:ryzen_2600e_firmware:pinnaclepi-am4_1.0.0.7:*:*:*:*:*:*:*
amd ryzen_2600e_firmware raven-fp5-am4_1.0.0.9 cpe:2.3:o:amd:ryzen_2600e_firmware:raven-fp5-am4_1.0.0.9:*:*:*:*:*:*:*

References for CVE-2021-46792

cvelogic Threat Intelligence