VDB
CVE-2026-3408
CVE-2026-3408
PUBLISHED
CVSS 6.5 MEDIUM
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.
EPSS 0.56% · 46.5th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
0.56%
46.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| n/a | Open Babel | 3.1.0, 3.1.1 |
| openbabel | open_babel | 0 |
Timeline
- Mar 2, 2026 EPSS Score
- Mar 2, 2026 CVE Published
- Mar 2, 2026 PoC Published
- Mar 2, 2026 PoC Published
- Mar 2, 2026 PoC Published
- Mar 4, 2026 EPSS Score
- Mar 6, 2026 EPSS Score
- Mar 9, 2026 EPSS Score
- Mar 11, 2026 EPSS Score
- Mar 13, 2026 EPSS Score
- Mar 15, 2026 EPSS Score
- Mar 17, 2026 Coalition ESS Score
References
- VDB-348303 | CTI Indicators (IOB, IOC, IOA) url
- Submit #763756 | openbabel Open Babel 3.1.1 and master-branch NULL Pointer Dereference third-party-advisory
- https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml exploit
- https://nvd.nist.gov/vuln/detail/CVE-2026-3408 advisory
- VDB-348303 | Open Babel CDXML File atom.cpp GetExplicitValence null pointer dereference vdb
- https://github.com/openbabel/openbabel/issues/2848 discussion
- https://github.com/openbabel/openbabel/pull/2862 fix
- https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a fix