CVE-2023-30774 Memory corruption in libtiff
A heap buffer overflow in libtiff allows attackers to execute arbitrary code or cause denial of service via crafted TIFF files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-30774?
CVE-2023-30774 is a medium-severity memory corruption vulnerability in Apple Macos, published on 19 May 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability was found in the libtiff library. This flaw causes a heap buffer overflow issue via the TIFFTAG_INKNAMES and TIFFTAG_NUMBEROFINKS values.
Which versions are affected by CVE-2023-30774?
It affects 2 products.
Products include Apple Macos, Libtiff Libtiff.
How do I fix CVE-2023-30774?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-30774 being exploited?
There is no known exploitation of CVE-2023-30774 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as AZL-44023, AZL-44907, BELL-CVE-2023-30774, DEBIAN-CVE-2023-30774, GHSA-3rqj-8cc4-p9rh, JLSEC-2025-302 and 1 more.