CVE-2023-20576

highpriority · track · 0OT risk · elevatedEPSS 0.001 · 2 %ileDE

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.12% (2nd) EPSS

CVSS 7.7 · high

Is it mine?

12 products

Check your exposure

Who says so?

2 sources

cnnvd · cert_bund

EPSS · scored 2026-10-27

Insufficient Verification of Data Authenticity in AGESA™ may allow an attacker to update SPI ROM data potentially resulting in denial of service or privilege escalation.

cvss

Technical severity, 0–10. One row per scoring source.

7.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.17.7highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Hsecondary · psirt@amd.comexploitability 2.5 · impact 5.2

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-345US

affected products (12)

Products and version ranges known to be affected.

AMD Prozessorall versionscert_bundDEcpe:/h:amd:amd_processor:-
Dell BIOS Alienware m16 R1 AMD <1.10.0all versionscert_bundDE
Dell BIOS Alienware m18 <1.10.0all versionscert_bundDE
Dell BIOS Inspiron 3505 <1.10.0all versionscert_bundDE
Dell BIOS Vostro 3405 <1.10.0all versionscert_bundDE
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
HP Computer Crayall versionscert_bundDEcpe:/h:hp:computer:cray
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
Dell BIOS≤ Alienware m16 R1 AMD <1.10.0cert_bundDE
Dell BIOS≤ Alienware m18 <1.10.0cert_bundDE
Dell BIOS≤ Inspiron 3505 <1.10.0cert_bundDE
Dell BIOS≤ Vostro 3405 <1.10.0cert_bundDE

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0369AMD Prozessor: Mehrere SchwachstellenDeutsch2024-02-13csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Prozessor und Dell BIOS ausnutzen, um seine Privilegien zu erweitern, beliebigen Code auszuführen oder einen Denial of Service auszulösen.

also known as (1)

Other names and identifiers for this entity.

CNNVD-202402-1131 cnnvd

sources

Which sources assert this record, and when.

cnnvd cert_bund NVD CVE.org MITRE

published 2026-09-02modified 2026-09-03

references (3)

External citations — patches, advisories, analysis.

scry

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