CVE-2026-102804: Nothings stb stb_hexwave.h hexwave_init integer overflow

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-30 · updated 2026-10-02
Weakness: CWE-189

Description

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.

Affected products

nothings stb: 2c980bb59875b0d32144a71867fbdebb2f77cd20

References

https://github.com/nothings/stb/
https://github.com/nothings/stb/issues/1961
https://github.com/user-attachments/files/31351618/poc_hexwave.c
https://vuldb.com/cve/CVE-2026-102804
https://vuldb.com/submit/944861
https://vuldb.com/vuln/411496
https://vuldb.com/vuln/411496/cti

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