CVE-2025-3407: medium-severity vulnerability in Nothings stb
Nothings stb stbhw_build_tileset_from_image out-of-bounds
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.5%
A vulnerability was found in Nothings stb up to f056911. It has been declared as critical. Affected by this vulnerability is the function stbhw_build_tileset_from_image. The manipulation of the argument h_count/v_count leads to out-of-bounds read. The attack can be launched remotely. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
Affected products
Nothings · stbRelated CVEs — Nothings stb
In the same product, most dangerous first.
CVE-2026-5314MEDIUMNothings stb TTF File stb_truetype.h stbtt_InitFont_internal out-of-boundsEPSS 0.7%CVE-2025-3406MEDIUMNothings stb Header Array stbhw_build_tileset_from_image out-of-boundsEPSS 0.6%CVE-2025-3409MEDIUMNothings stb stb_include_string stack-based overflowEPSS 0.5%CVE-2026-5315MEDIUMNothings stb TTF File stb_truetype.h stbtt__buf_get8 out-of-boundsEPSS 0.5%CVE-2025-3408MEDIUMNothings stb stb_dupreplace integer overflowEPSS 0.5%CVE-2026-5316MEDIUMNothings stb stb_vorbis.c setup_free allocation of resourcesEPSS 0.4%