CVE-2025-3408 Nothings stb stb_dupreplace integer overflow
An integer overflow in the stb_dupreplace function allows remote attackers to cause denial of service or potentially execute code.
- 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-2025-3408?
CVE-2025-3408 is a medium-severity 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 rated as critical. Affected by this issue is the function stb_dupreplace. The manipulation leads to integer overflow. The attack may be launched remotely. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2025-3408?
It affects 1 product.
Products include Nothings Stb Image.h.
How do I fix CVE-2025-3408?
No fix has been published for CVE-2025-3408 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-3408 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-3408 exists.
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-2025-3408, GHSA-jfjp-pcc3-pr3f, UBUNTU-CVE-2025-3408.