CVE-2026-5315

Name: CVE-2026-5315
Creator: NVD / NIST
Published: 2026-04-02T00:16:25.153+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 0.51%

Last modified Jun 17, 2026

CVE-2026-5315 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. EPSS estimates a 0.51% chance of exploitation in the next 30 days.

Description

A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS 4.0

2.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.51%

39.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Nothings	Stb Truetype.H	<= 1.26

References

https://gist.github.com/d0razi/c11dd07c75f3b795e4f8bbfd6e2f0d29Exploit, Third Party Advisory
https://vuldb.com/submit/780559Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354647Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354647/ctiPermissions Required, VDB Entry

Timeline

Published: Apr 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5315?

How severe is CVE-2026-5315?

CVE-2026-5315 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.51% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5315?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5315?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST