CVE-2026-22879 Memory corruption in vtk
A heap-based buffer overflow in vtk-dicom allows attackers to execute arbitrary code or cause denial of service via a malicious DICOM file.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-22879?
CVE-2026-22879 is a high-severity memory corruption vulnerability in vtk, published on 25 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A heap-based buffer overflow vulnerability exists in the vtkDICOMItem::FindDataElementOrInsert functionality of vtk-dicom (version(s): 9.5.2). A specially crafted DICOM file can lead to heap-based memory corruption. An attacker can provide a malicious file to trigger this vulnerability.
Weakness: CWE-129
Which versions are affected by CVE-2026-22879?
How do I fix CVE-2026-22879?
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-2026-22879 being exploited?
There is no known exploitation of CVE-2026-22879 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-22879, GHSA-prp5-qv62-frpc, JLSEC-2026-633, UBUNTU-CVE-2026-22879.