CVE-2023-40889A heap-based buffer overflow exists in the qr_reader_match_centers function of ZBar 0.23.90. Specially crafted QR codes may lead to…
- 9.8CriticalCVSS base score
- 1.7%Exploitation in 30 daysEPSS · top 22% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By mitre
- 7 days later
· 7 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.7% · top 22% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
References
References5
- https://hackmd.io/%40cspl/B1ZkFZv23 (opens in a new tab)x_transferred
- [debian-lts-announce] 20231201 [SECURITY] [DLA 3675-1] zbar security update (opens in a new tab)mailing-listx_transferred
- FEDORA-2024-583e4098b9 (opens in a new tab)vendor-advisoryx_transferred
- FEDORA-2024-73d5220ed3 (opens in a new tab)vendor-advisoryx_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/DC7V5YCLCPB36J2KY6WLZCABFLBRB665/ (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2023-2327 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-mhp6-jvpx-2p4m (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2023-40889)Record last updated .