Vulnerability Name:

CVE-2021-26390 (CCN-226296)

Assigned:2021-01-29
Published:2022-05-06
Updated:2022-05-25
Summary:A malicious or compromised UApp or ABL may coerce the bootloader into corrupting arbitrary memory potentially leading to loss of integrity of data.
CVSS v3 Severity:6.2 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
5.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:C/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Complete
Availibility (A): None
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2021-26390

Source: XF
Type: UNKNOWN
amd-cve202126390-sec-bypass(226296)

Source: CCN
Type: AMD-SB-1021
AMD Server Vulnerabilities - November 2021

Source: MISC
Type: Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Vulnerable Configuration:Configuration 1:
  • cpe:/o:amd:ryzen_5_2600_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_2600:-:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/o:amd:ryzen_5_2600x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_2600x:-:*:*:*:*:*:*:*

    • Configuration 3:
  • cpe:/o:amd:ryzen_5_2700x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_2700x:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:amd:ryzen_5_2700_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_2700:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:amd:ryzen_5_3600_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_3600:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:amd:ryzen_5_3600x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_3600x:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:amd:ryzen_7_3700x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_3700x:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:amd:ryzen_7_3800x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_3800x:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:amd:ryzen_9_3900x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_9_3900x:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:amd:ryzen_9_3950x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_9_3950x:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:amd:ryzen_9_5950x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_9_5950x:-:*:*:*:*:*:*:*

    • Configuration 12:
  • cpe:/o:amd:ryzen_9_5900x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_9_5900x:-:*:*:*:*:*:*:*

    • Configuration 13:
  • cpe:/o:amd:ryzen_7_5800x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_5800x:-:*:*:*:*:*:*:*

    • Configuration 14:
  • cpe:/o:amd:ryzen_7_5700g_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_5700g:-:*:*:*:*:*:*:*

    • Configuration 15:
  • cpe:/o:amd:ryzen_7_5700ge_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_5700ge:-:*:*:*:*:*:*:*

    • Configuration 16:
  • cpe:/o:amd:ryzen_5_5600g_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_5600g:-:*:*:*:*:*:*:*

    • Configuration 17:
  • cpe:/o:amd:ryzen_5_5600x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_5600x:-:*:*:*:*:*:*:*

    • Configuration 18:
  • cpe:/o:amd:ryzen_5_5600ge_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_5600ge:-:*:*:*:*:*:*:*

    • Configuration 19:
  • cpe:/o:amd:ryzen_3_5300g_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_3_5300g:-:*:*:*:*:*:*:*

    • Configuration 20:
  • cpe:/o:amd:ryzen_3_5300ge_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_3_5300ge:-:*:*:*:*:*:*:*

    • Configuration 21:
  • cpe:/o:amd:ryzen_threadripper_2990wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_2990wx:-:*:*:*:*:*:*:*

    • Configuration 22:
  • cpe:/o:amd:ryzen_threadripper_2970wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_2970wx:-:*:*:*:*:*:*:*

    • Configuration 23:
  • cpe:/o:amd:ryzen_threadripper_2950x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_2950x:-:*:*:*:*:*:*:*

    • Configuration 24:
  • cpe:/o:amd:ryzen_threadripper_2920x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_2920x:-:*:*:*:*:*:*:*

    • Configuration 25:
  • cpe:/o:amd:ryzen_threadripper_3970x_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_3970x:-:*:*:*:*:*:*:*

    • Configuration 26:
  • cpe:/o:amd:ryzen_threadripper_pro_5995wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_pro_5995wx:-:*:*:*:*:*:*:*

    • Configuration 27:
  • cpe:/o:amd:ryzen_threadripper_pro_5975wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_pro_5975wx:-:*:*:*:*:*:*:*

    • Configuration 28:
  • cpe:/o:amd:ryzen_threadripper_pro_5965wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_pro_5965wx:-:*:*:*:*:*:*:*

    • Configuration 29:
  • cpe:/o:amd:ryzen_threadripper_pro_5955wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_pro_5955wx:-:*:*:*:*:*:*:*

    • Configuration 30:
  • cpe:/o:amd:ryzen_threadripper_pro_5945wx_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_threadripper_pro_5945wx:-:*:*:*:*:*:*:*

    • Configuration 31:
  • cpe:/o:amd:ryzen_7_3750h_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_3750h:-:*:*:*:*:*:*:*

    • Configuration 32:
  • cpe:/o:amd:ryzen_7_3700u_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_7_3700u:-:*:*:*:*:*:*:*

    • Configuration 33:
  • cpe:/o:amd:ryzen_5_3550h_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_3550h:-:*:*:*:*:*:*:*

    • Configuration 34:
  • cpe:/o:amd:ryzen_5_3500u_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_5_3500u:-:*:*:*:*:*:*:*

    • Configuration 35:
  • cpe:/o:amd:ryzen_3_3300u_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_3_3300u:-:*:*:*:*:*:*:*

    • Configuration 36:
  • cpe:/o:amd:ryzen_3_3200u_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:ryzen_3_3200u:-:*:*:*:*:*:*:*

    • Configuration 37:
  • cpe:/o:amd:athlon_300u_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:amd:athlon_300u:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    amd ryzen 5 2600 firmware -
    amd ryzen 5 2600 -
    amd ryzen 5 2600x firmware -
    amd ryzen 5 2600x -
    amd ryzen 5 2700x firmware -
    amd ryzen 5 2700x -
    amd ryzen 5 2700 firmware -
    amd ryzen 5 2700 -
    amd ryzen 5 3600 firmware -
    amd ryzen 5 3600 -
    amd ryzen 5 3600x firmware -
    amd ryzen 5 3600x -
    amd ryzen 7 3700x firmware -
    amd ryzen 7 3700x -
    amd ryzen 7 3800x firmware -
    amd ryzen 7 3800x -
    amd ryzen 9 3900x firmware -
    amd ryzen 9 3900x -
    amd ryzen 9 3950x firmware -
    amd ryzen 9 3950x -
    amd ryzen 9 5950x firmware -
    amd ryzen 9 5950x -
    amd ryzen 9 5900x firmware -
    amd ryzen 9 5900x -
    amd ryzen 7 5800x firmware -
    amd ryzen 7 5800x -
    amd ryzen 7 5700g firmware -
    amd ryzen 7 5700g -
    amd ryzen 7 5700ge firmware -
    amd ryzen 7 5700ge -
    amd ryzen 5 5600g firmware -
    amd ryzen 5 5600g -
    amd ryzen 5 5600x firmware -
    amd ryzen 5 5600x -
    amd ryzen 5 5600ge firmware -
    amd ryzen 5 5600ge -
    amd ryzen 3 5300g firmware -
    amd ryzen 3 5300g -
    amd ryzen 3 5300ge firmware -
    amd ryzen 3 5300ge -
    amd ryzen threadripper 2990wx firmware -
    amd ryzen threadripper 2990wx -
    amd ryzen threadripper 2970wx firmware -
    amd ryzen threadripper 2970wx -
    amd ryzen threadripper 2950x firmware -
    amd ryzen threadripper 2950x -
    amd ryzen threadripper 2920x firmware -
    amd ryzen threadripper 2920x -
    amd ryzen threadripper 3970x firmware -
    amd ryzen threadripper 3970x -
    amd ryzen threadripper pro 5995wx firmware -
    amd ryzen threadripper pro 5995wx -
    amd ryzen threadripper pro 5975wx firmware -
    amd ryzen threadripper pro 5975wx -
    amd ryzen threadripper pro 5965wx firmware -
    amd ryzen threadripper pro 5965wx -
    amd ryzen threadripper pro 5955wx firmware -
    amd ryzen threadripper pro 5955wx -
    amd ryzen threadripper pro 5945wx firmware -
    amd ryzen threadripper pro 5945wx -
    amd ryzen 7 3750h firmware -
    amd ryzen 7 3750h -
    amd ryzen 7 3700u firmware -
    amd ryzen 7 3700u -
    amd ryzen 5 3550h firmware -
    amd ryzen 5 3550h -
    amd ryzen 5 3500u firmware -
    amd ryzen 5 3500u -
    amd ryzen 3 3300u firmware -
    amd ryzen 3 3300u -
    amd ryzen 3 3200u firmware -
    amd ryzen 3 3200u -
    amd athlon 300u firmware -
    amd athlon 300u -