Low severity · published Oct 14, 2026
CVE-2026-110661
CGNS through 4.5.2 Stack Out-of-Bounds Read via ADFI_read_node_header
3.3
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CG
CGNS · CGNS
through 4.5.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-110661
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-110661
technical-description
https://hackmd.io/@haind-pwn/cgns-adf-node-header-oob-read
technical-description
https://github.com/CGNS/CGNS/blob/3a972d92559787a49c5f9a54974ea1946ecb9d21/src/adf/ADF_internals.c#L6828
product
https://github.com/CGNS/CGNS
third-party-advisory
https://www.vulncheck.com/advisories/cgns-through-4.5.2-stack-out-of-bounds-read-via-adfi-read-node-header