CVE-2023-30086 Memory corruption in n/a

Medium 5.5 Published 9 May 2023 Updated 9 Jul 2026

A local attacker can cause a denial of service via a buffer overflow in the tiffcp function of the Libtiff library.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2023-30086?

CVE-2023-30086 is a medium-severity memory corruption vulnerability in Libtiff Libtiff, published on 9 May 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Buffer Overflow vulnerability found in Libtiff V.4.0.7 allows a local attacker to cause a denial of service via the tiffcp function in tiffcp.c.

Weakness: CWE-787

Which versions are affected by CVE-2023-30086?

It affects 1 product.

Products include Libtiff Libtiff.

How do I fix CVE-2023-30086?

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-2023-30086 being exploited?

There is no known exploitation of CVE-2023-30086 in the wild and no public exploit code.

All Libtiff Libtiff vulnerabilities

Sources

Also known as AZL-43927, AZL-44253, BELL-CVE-2023-30086, DEBIAN-CVE-2023-30086, GHSA-9489-j7g7-5xg4, UBUNTU-CVE-2023-30086.