CVE-2026-3408

low-risk
Published 2026-03-02

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.

Do I need to act?

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0.10% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Openbabel

References (7)

Patch https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb...
Issue Tracking https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml
Exploit https://github.com/openbabel/openbabel/issues/2848
Issue Tracking https://github.com/openbabel/openbabel/pull/2862
Permissions Required https://vuldb.com/?ctiid.348303
Third Party Advisory https://vuldb.com/?id.348303
Third Party Advisory https://vuldb.com/?submit.763756
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal