CVE-2026-3408

Name: CVE-2026-3408
Creator: NVD / NIST
Published: 2026-03-02T04:16:06.023+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 0.39%

Last modified Jun 17, 2026

CVE-2026-3408 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. 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. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

6.5/10

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

CVSS 4.0

2.1/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.39%

31.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Openbabel	Open Babel	<= 3.1.1

References

https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08aPatch
https://github.com/oneafter/0128/blob/main/ob3/repro.cdxmlIssue Tracking
https://github.com/openbabel/openbabel/issues/2848Exploit, Issue Tracking
https://github.com/openbabel/openbabel/pull/2862Issue Tracking
https://vuldb.com/?ctiid.348303Permissions Required, VDB Entry
https://vuldb.com/?id.348303Third Party Advisory, VDB Entry
https://vuldb.com/?submit.763756Third Party Advisory, VDB Entry

Timeline

Published: Mar 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-3408?

How severe is CVE-2026-3408?

CVE-2026-3408 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2026-3408?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-3408?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST