CVE-2025-3406: stb image.h Buffer Overflow (CVSS 4.3)

Description

A vulnerability was found in Nothings stb up to f056911. It has been classified as problematic. Affected is the function stbhw_build_tileset_from_image of the component Header Array Handler. The manipulation of the argument w leads to out-of-bounds read. It is possible to launch the attack remotely. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.

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CVSS v3.1 Score

4.3

MEDIUM

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

Weakness Type (CWE)

CWE-119 Buffer Overflow

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
nothings	stb_image.h	< 2025-03-14

References

Other References

https://vuldb.com/?ctiid.303684 https://vuldb.com/?id.303684 https://vuldb.com/?submit.544226

Frequently Asked Questions

What is CVE-2025-3406? +

A vulnerability was found in Nothings stb up to f056911. It has been classified as problematic. Affected is the function stbhw_build_tileset_from_image of the component Header Array Handler. The manipulation of the argument w leads to out-of-bounds read. It is possible to launch the attack remotely. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2025-3406? +

CVE-2025-3406 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-3406? +

CVE-2025-3406 affects products from nothings, specifically: stb_image.h. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-3406? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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