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

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction Required

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction Required

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Openbabel
  • Open Babel

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References
Link Providers
https://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a cve-icon cve-icon
https://github.com/oneafter/0128/blob/main/ob3/repro.cdxml cve-icon cve-icon
https://github.com/openbabel/openbabel/issues/2848 cve-icon cve-icon
https://github.com/openbabel/openbabel/pull/2862 cve-icon cve-icon
https://vuldb.com/?ctiid.348303 cve-icon cve-icon
https://vuldb.com/?id.348303 cve-icon cve-icon
https://vuldb.com/?submit.763756 cve-icon cve-icon
History

Mon, 02 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 02 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Openbabel
Openbabel open Babel
Vendors & Products Openbabel
Openbabel open Babel

Mon, 02 Mar 2026 04:15:00 +0000

Type Values Removed Values Added
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.
Title Open Babel CDXML File atom.cpp GetExplicitValence null pointer dereference
Weaknesses CWE-404
CWE-476
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 5.3, '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'}
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-03-02T03:32:10.760Z

Updated: 2026-03-02T14:39:26.476Z

Reserved: 2026-03-01T07:11:14.065Z

Link: CVE-2026-3408

cve-icon Vulnrichment

Updated: 2026-03-02T14:38:57.107Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-02T04:16:06.023

Modified: 2026-03-02T20:30:10.923

Link: CVE-2026-3408

cve-icon Redhat

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