CVE-2026-3408CWE-404CWE-476

Open Babel CDXML File atom.cpp GetExplicitValence null pointer dereference

Medium · published March 2, 2026

CVSS v4.0
5.3
EPSS
1%
Percentile
53.5
In the wild
Unconfirmed
What it is

A vulnerability was identified in Open Babel up to 3.1.1. This impacts the function OBAtom::GetExplicitValence of the file isrc/atom.cpp of the component CDXML File Handler. Such manipulation leads to null pointer dereference. The attack can be launched remotely. The exploit is publicly available and might be used. The name of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is best practice to apply a patch to resolve this issue.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
EPSS
0.00724 · 53.5th percentile
Weaknesses
CWE-404 · Improper Resource Shutdown or Release; CWE-476 · NULL Pointer Dereference
Published
2026-03-02T03:32Z
EPSS history
Timeline
  • 02 MAR 03:32Z
    Open Babel CDXML File atom.cpp GetExplicitValence null pointer dereference
    cvelistv5