CVE-2021-46762

Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of service.

Published: 2023-05-09 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-46762 is rated Low Risk (25.2/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.35%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2021-46762

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 2026-06-15 0.05% 0.35% +0.30%
2 2026-05-31 0.03% 0.05% +0.02%
3 2025-11-21 — 0.03% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-46762

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.9 3.1 LOW
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:L/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 0.8 2.7 [email protected]
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.2 [email protected]

Weakness enumeration for CVE-2021-46762

Affected software / configurations for CVE-2021-46762

Vendor Product Version Raw CPE
amd epyc_72f3_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_72f3_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7313_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7313_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7313p_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7313p_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7343_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7343_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7373x_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7373x_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_73f3_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_73f3_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7413_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7413_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7443_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7443_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7443p_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7443p_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7453_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7453_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7473x_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7473x_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_74f3_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_74f3_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7513_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7513_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7543_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7543_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7543p_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7543p_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7573x_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7573x_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_75f3_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_75f3_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7643_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7643_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7663_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7663_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7713_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7713_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7713p_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7713p_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7763_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7763_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7773x_firmware milanpi_1.0.0.9 cpe:2.3:o:amd:epyc_7773x_firmware:milanpi_1.0.0.9:*:*:*:*:*:*:*
amd epyc_7232p_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7232p_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7252_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7252_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7262_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7262_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7272_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7272_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7282_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7282_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7302_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7302_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7302p_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7302p_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7352_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7352_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7402_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7402_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7402p_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7402p_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7452_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7452_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7502_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7502_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7502p_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7502p_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7532_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7532_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7542_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7542_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7552_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7552_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7642_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7642_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7662_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7662_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7702_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7702_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7702p_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7702p_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7742_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7742_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7f32_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7f32_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7f52_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7f52_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7f72_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7f72_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*
amd epyc_7h12_firmware romepi_1.0.0.e cpe:2.3:o:amd:epyc_7h12_firmware:romepi_1.0.0.e:*:*:*:*:*:*:*

References for CVE-2021-46762

cvelogic Threat Intelligence