CVE-2025-3409 Nothings stb stb_include_string stack-based overflow
A stack-based buffer overflow in the stb_include_string function allows remote attackers to execute arbitrary code or cause denial of service.
- 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-2025-3409?
CVE-2025-3409 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 classified as critical has been found in Nothings stb up to f056911. This affects the function stb_include_string. The manipulation of the argument path_to_includes leads to stack-based buffer overflow. It is possible to initiate the attack remotely. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-3409?
It affects 1 product.
Products include Nothings Stb Image.h.
How do I fix CVE-2025-3409?
No fix has been published for CVE-2025-3409 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-2025-3409 being exploited?
There is no known exploitation of CVE-2025-3409 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-2025-3409, GHSA-69p9-7943-9qhx, UBUNTU-CVE-2025-3409.