Vulnerability Database

327,594

Total vulnerabilities in the database

CVE-2021-46765

Insufficient input validation in ASP may allow an attacker with a compromised SMM to induce out-of-bounds memory reads within the ASP, potentially leading to a denial of service.

  • Published: May 9, 2023
  • Updated: Nov 16, 2025
  • CVE: CVE-2021-46765
  • Severity: High
  • Exploit:

CVSS v3:

  • Severity: High
  • Score: 7.5
  • AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
amd / ryzen_6600h_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6600hs_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6600u_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6800h_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6800hs_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6800u_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6900hs_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6900hx_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6980hs_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_6980hx_firmware rembrandtpi-fp7_1.0.0.5 rembrandtpi-fp7_1.0.0.5.x
amd / ryzen_5300g_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5300g_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5300ge_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5300ge_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5500_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5500_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5600_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5600_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5600g_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5600g_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5600ge_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5600ge_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5600x_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5600x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5700g_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5700g_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5700ge_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5700ge_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5700x_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5700x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5800_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5800_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5800x3d_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5800x3d_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5800x_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5800x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5900_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5900_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5900x_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5900x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5945wx_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5945wx_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5950x_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5950x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5955wx_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5955wx_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5965wx_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5965wx_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5975wx_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5975wx_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_5995wx_firmware cezannepi-fp6_1.0.0.b cezannepi-fp6_1.0.0.b.x
amd / ryzen_5995wx_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3100_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3100_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3300x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3300x_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3500_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3500_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3500x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3500x_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3600_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3600_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3600x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3600x_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3600xt_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3600xt_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3800x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3800x_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3800xt_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3800xt_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3900_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3900_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3900x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3900x_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3900xt_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3900xt_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x
amd / ryzen_3950x_firmware comboam4v2_pi_1.2.0.8 comboam4v2_pi_1.2.0.8.x
amd / ryzen_3950x_firmware renoirpi-fp6_1.0.0.9 renoirpi-fp6_1.0.0.9.x

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.