AUGUST 4, 2026
Live Feed
Back to database
Case File

CVE-2023-40890

CRITICAL · CVSS 9.8 EPSS 1.79% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2023-08-29 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

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-2023-40890
Severity
CRITICAL
CVSS
9.8
EPSS
1.79%

Original NVD Description

A stack-based buffer overflow vulnerability exists in the lookup_sequence function of ZBar 0.23.90. Specially crafted QR codes may lead to information disclosure and/or arbitrary code execution. To trigger this vulnerability, an attacker can digitally input the malicious QR code, or prepare it to be physically scanned by the vulnerable scanner.