Integer overflow in Nothings Stb
CVE-2026-102804
A vulnerability was detected in Nothings stb up to 2c980bb59875b0d32144a71867fbdebb2f77cd20. The impacted element is the function hexwave_init in the library stb_hexwave.h. Performing a manipulation of the argument width/oversample results in integer overflow. Remote exploitation of the attack is possible. The exploit is now public and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Nothings Stb — versions 2c980bb59875b0d32144a71867fbdebb2f77cd20
Weakness classification (CWE)
References
- vuldb.com/vuln/411496 (technical-description, vdb-entry)
- vuldb.com/vuln/411496/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-102804 (third-party-advisory)
- vuldb.com/submit/944861 (third-party-advisory)
- github.com/nothings/stb/issues/1961 (issue-tracking)
- github.com/user-attachments/files/31351618/poc_hexwave.c (exploit)
- github.com/nothings/stb/ (product)
Frequently asked questions
- What is CVE-2026-102804?
- CVE-2026-102804 is a medium-severity vulnerability in Nothings Stb, classified under CWE-189. CVSS score: 6.5/10. Published 2026-09-30.
- How severe is CVE-2026-102804?
- Medium severity. CVSS v3 base score is 6.5 out of 10.