CVE-2025-3407 Nothings stb stbhw_build_tileset_from_image out-of-bounds
An out-of-bounds read in the stb library allows remote attackers to cause denial of service or disclose memory contents via crafted tileset arguments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-3407?
CVE-2025-3407 is a medium-severity memory corruption vulnerability in Nothings stb, published on 8 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Which versions are affected by CVE-2025-3407?
It affects 1 product.
Products include Nothings Stb Image.h.
How do I fix CVE-2025-3407?
No fix has been published for CVE-2025-3407 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-3407 being exploited?
There is no known exploitation of CVE-2025-3407 in the wild and no public exploit code.
Other vulnerabilities in Nothings stb
- CVE-2019-19777 Memory corruption in n/a
- CVE-2023-45664 Double-free in stbi__load_gif_main_outofmem in stb_image
- CVE-2023-45666 Possible double-free or memory leak in stbi__load_gif_main in stb_image
- CVE-2023-43281 Use after free in n/a
- CVE-2023-45661 Wild address read in stbi__gif_load_next in stb_image
Sources
Also known as DEBIAN-CVE-2025-3407, GHSA-53wr-h738-wq84, UBUNTU-CVE-2025-3407.