CVE-2026-110661

LOW 3.3

CGNS through 4.5.2 Stack Out-of-Bounds Read via ADFI_read_node_header

CVSS Score

3.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-125
Vendor	cgns
Product	cgns
Published	Oct 14, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

Affected Versions

CGNS / CGNS

0 ≤ 4.5.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

hackmd.io: https://hackmd.io/@haind-pwn/cgns-adf-node-header-oob-read github.com: https://github.com/CGNS/CGNS/blob/3a972d92559787a49c5f9a54974ea1946ecb9d21/src/adf/ADF_internals.c#L6828 github.com: https://github.com/CGNS/CGNS vulncheck.com: https://www.vulncheck.com/advisories/cgns-through-4.5.2-stack-out-of-bounds-read-via-adfi-read-node-header

Credits

HaiND from the Post and Telecommunication Institute of Technology