CVE-2023-40889

CriticalCVSS 9.8/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

No affected versions have been published.

Timeline

Published
Aug 29, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-40889: Critical severity, CVSS 9.8 | Vulnix