A stack-based buffer overflow vulnerability exists in the lookup_sequence function of…
Priority MEDIUM 53CWE-787Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01946 80th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:zbar_project:zbar:0.23.90:*:*:*:*:*:*:* | 0.23.90 | Vulnerable | Zbar Project |
- cpe:2.3:a:zbar_project:zbar:0.23.90:*:*:*:*:*:*:* Versions 0.23.90 Vulnerable ·Zbar Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2023-40890
- 2026-10-03 Alias added: GHSA-p3ww-vpp7-fpm5
References
More Zbar Project Zbar vulnerabilities
- TI-2023-21595 A heap-based buffer overflow exists in the qr_reader_match_centers function of ZBar… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-40890 · CVE Program
- CVE-2023-40890 · NVD
- FIRST EPSS
- GHSA-p3ww-vpp7-fpm5 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-40890 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences