CVE-2021-26345

MEDIUM
4.9
CVSS Score
Published: November 14, 2023 at 06:53 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
185 products affected across 1 vendorEpyc 7713P FirmwareEpyc 7663 FirmwareEpyc 7413 Firmware

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.4%

Description

Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read potentially resulting in a denial of service.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < milanpi_1.0.0.a
Affected range stops below milanpi_1.0.0.a, so it looks safe — our inference, not a vendor statement
amd-epyc-7203 (same device)
v < milanpi_1.0.0.a
Affected range stops below milanpi_1.0.0.a, so it looks safe — our inference, not a vendor statement
amd-epyc-7203p (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7232p (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7252 (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7262 (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7272 (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7282 (same device)
v < milanpi_1.0.0.a
Affected range stops below milanpi_1.0.0.a, so it looks safe — our inference, not a vendor statement
amd-epyc-72f3 (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7302 (same device)
v < romepi_1.0.0.f
Affected range stops below romepi_1.0.0.f, so it looks safe — our inference, not a vendor statement
amd-epyc-7302p (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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