Integer overflow in Raylib
CVE-2025-15534
A vulnerability was identified in raysan5 raylib up to 909f040. Affected by this issue is the function LoadFontData of the file src/rtext.c. The manipulation leads to integer overflow. The attack can only be performed from a local environment. The exploit is publicly available and might be used. The identifier of the patch is 5a3391fdce046bc5473e52afbd835dd2dc127146. It is suggested to install a patch to address this issue.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.002 (13.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000
Affected products
- Raylib
- Raysan5 Raylib — versions 909f040
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- vuldb.com/ (signature, Permissions Required, permissions-required, VDB Entry)
- vuldb.com/ (VDB Entry, Third Party Advisory, third-party-advisory)
- github.com/raysan5/raylib/issues/5436 (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- github.com/raysan5/raylib/pull/5450 (issue-tracking, Issue Tracking)
- github.com/oneafter/1224/blob/main/segv1 (Exploit, exploit)
- github.com/raysan5/raylib/commit/5a3391fdce046bc5473e52afbd835dd2dc127146 (Patch, patch)
- github.com/raysan5/raylib/ (product)
Frequently asked questions
- What is CVE-2025-15534?
- CVE-2025-15534 is a medium-severity vulnerability in Raylib, classified under CWE-189. CVSS score: 5.3/10. Published 2026-01-18.
- How severe is CVE-2025-15534?
- Medium severity. CVSS v3 base score is 5.3 out of 10.