No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
Description
ZBar through 0.23.95 contains an out-of-bounds read vulnerability in _zbar_sq_decode() in zbar/sqcode.c that allows attackers to read heap memory outside the image buffer via crafted SQ code images. Attackers can supply an image with a skewed SQ code finder pattern near the edge, producing unchecked sample coordinates that crash the decoder and leak bytes into output.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 04 Nov 2026
- Last modified upstream: 04 Nov 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- https://github.com/mchehab/zbar/blob/0.23.95/zbar/sqcode.c#L529-L567
- https://github.com/mchehab/zbar/issues/351
- https://hackmd.io/@haindpwn/zbar-sqcode-sampling-oob-read
- https://www.vulncheck.com/advisories/zbar-through-0.23.95-out-of-bounds-read-via-zbar-sq-decode-in-sqcode-c
- https://hackmd.io/@haindpwn/cve-2026-121942-zbar-sqcode-sampling-oob-read
- Analysis, summary and remediation
- © VulnCrest