CVE-2026-110661 CGNS through 4.5.2 Stack Out-of-Bounds Read via ADFI_read_node_header
Attackers can crash applications using the CGNS library by supplying crafted ADF node headers that trigger a stack out-of-bounds read.
- 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
- None listed
What is CVE-2026-110661?
CVE-2026-110661 is a medium-severity memory corruption vulnerability in CGNS, published on 14 Oct 2026. 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
CGNS through 4.5.2 contains a stack out-of-bounds read vulnerability in ADFI_read_node_header that allows attackers to crash applications by supplying crafted ADF node headers. Attackers can craft .cgns or .adf files whose non-NUL-terminated end tag causes ADFI_stridx_c to scan past disk_node_data, crashing tools like cgnslist.
Weakness: CWE-125
Which versions are affected by CVE-2026-110661?
How do I fix CVE-2026-110661?
No fix has been published for CVE-2026-110661 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-2026-110661 being exploited?
There is no known exploitation of CVE-2026-110661 in the wild and no public exploit code.
Sources
Also known as GHSA-c64r-37fg-rgvp, UBUNTU-CVE-2026-110661.