Buffer overflow in Nothings Stb
CVE-2026-5314
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploit…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (19.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Nothings Stb — versions 1.0, 1.1, 1.2
- Nothings Stb_truetype.h
Weakness classification (CWE)
References
- VDB-354646 | Nothings stb TTF File stb_truetype.h stbtt_InitFont_internal out-of-bounds (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-354646 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #780558 | nothings stb (stb_truetype.h) ≤ 1.26 Out-of-Bounds Read (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2026-5314?
- CVE-2026-5314 is a medium-severity vulnerability in Nothings Stb, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.3/10. Published 2026-04-01.
- How severe is CVE-2026-5314?
- Medium severity. CVSS v3 base score is 4.3 out of 10.