CVE-2021-26355

🗓️ 10 Jan 2023 20:56:37Reported by AMDType

Insufficient fencing and checks in System Management Unit (SMU) may result in access to invalid message port registers that could result in a potential denial-of-service

Reporter	Title	Published	Views	Family All 12
Amd	AMD Server Vulnerabilities – January 2023	10 Jan 202300:00	–	amd
BDU FSTEC	The vulnerability of the System Management Unit (SMU) subsystem in AMD microprogramming software allows a hacker to trigger a service failure.	21 Feb 202300:00	–	bdu_fstec
CNNVD	AMD System Management Unit (SMU) 资源管理错误漏洞	11 Jan 202300:00	–	cnnvd
Cvelist	CVE-2021-26355	10 Jan 202320:56	–	cvelist
EUVD	EUVD-2021-13161	7 Oct 202500:30	–	euvd
HPE Security Bulletins	HPESBHF04404 rev.1 - HPE ProLiant Gen10 and Gen10 Plus Servers Using Certain AMD EPYC Processors, Multiple Local Vulnerabilities	20 Jan 202300:00	–	hpe
NCSC	Vulnerabilities fixed in Dell PowerEdge	13 Jan 202300:00	–	ncsc
NVD	CVE-2021-26355	11 Jan 202308:15	–	nvd
OSV	CVE-2021-26355	11 Jan 202308:15	–	osv
Prion	Authorization	11 Jan 202308:15	–	prion

NVD

Node

AND

amd epyc_7003_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7003Match-

Node

AND

amd epyc_72f3_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_72f3Match-

Node

AND

amd epyc_7313_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7313Match-

Node

AND

amd epyc_7313p_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7313pMatch-

Node

AND

amd epyc_7343_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7343Match-

Node

AND

amd epyc_7373x_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7373xMatch-

Node

AND

amd epyc_73f3_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_73f3Match-

Node

AND

amd epyc_7413_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7413Match-

Node

AND

amd epyc_7443_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7443Match-

Node

AND

amd epyc_7443p_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7443pMatch-

Node

AND

amd epyc_7453_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7453Match-

Node

AND

amd epyc_74f3_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_74f3Match-

Node

AND

amd epyc_7513_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7513Match-

Node

AND

amd epyc_7543_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7543Match-

Node

AND

amd epyc_7543p_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7543pMatch-

Node

AND

amd epyc_7573x_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7573xMatch-

Node

AND

amd epyc_75f3_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_75f3Match-

Node

AND

amd epyc_7643_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7643Match-

Node

AND

amd epyc_7663_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7663Match-

Node

AND

amd epyc_7713_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7713Match-

Node

AND

amd epyc_7713p_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7713pMatch-

Node

AND

amd epyc_7743_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7743Match-

Node

AND

amd epyc_7763_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7763Match-

Node

AND

amd epyc_7773x_firmwareRange<milanpi-sp3_1.0.0.7

amd epyc_7773xMatch-

[
  {
    "defaultStatus": "unaffected",
    "packageName": "AGESA",
    "platforms": [
      "x86"
    ],
    "product": "3rd Gen EPYC",
    "vendor": "AMD",
    "versions": [
      {
        "status": "affected",
        "version": "various "
      }
    ]
  }
]

Source	Link
amd	www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

17 Jun 2026 03:43Current

6.1Medium risk

Vulners AI Score6.1

CVSS 3.15.5

EPSS0.00171

SSVC

CWE-693