CVE-2026-4734 Heap Buffer Overflow in yoyofr/modizer
A heap buffer overflow in Modizer allows attackers to execute arbitrary code or cause a denial of service via crafted input.
- 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-2026-4734?
CVE-2026-4734 is a critical memory corruption vulnerability in yoyofr modizer, published on 24 Mar 2026. 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
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in yoyofr modizer (libs/libopenmpt/openmpt-trunk/include/premake/contrib/curl/lib modules). This vulnerability is associated with program files imap.C.
This issue affects modizer: before v4.3.
Weakness: CWE-119
Which versions are affected by CVE-2026-4734?
How do I fix CVE-2026-4734?
No fix has been published for CVE-2026-4734 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-2026-4734 being exploited?
There is no known exploitation of CVE-2026-4734 in the wild and no public exploit code.
Sources
Also known as GHSA-36m3-3x88-3x7w.