SEPTEMBER 17, 2026
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Case File

CVE-2023-20577

HIGH · CVSS 7.4 EPSS 0.16% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-02 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

A heap overflow vulnerability in the SMM module could allow an attacker, who has already exploited a separate vulnerability to write to SPI flash, to execute arbitrary code. This poses a significant risk to systems utilizing the affected SMM module, particularly in environments where firmware integrity is critical. Organizations with devices relying on this module should prioritize patching to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
arbitrary code execution code execution

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-20577
Severity
HIGH
CVSS
7.4
EPSS
0.16%

Original NVD Description

A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in arbitrary code execution.