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Case File

CVE-2023-40889

CRITICAL · CVSS 9.8 EPSS 1.54% Public Exploit

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

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. Public exploit code or proof-of-concept references have been detected in its references.

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-2023-40889
Severity
CRITICAL
CVSS
9.8
EPSS
1.54%

Original NVD Description

A heap-based buffer overflow exists in the qr_reader_match_centers 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)