HOMEVULNERABILITIESCVE-2026-3408
MEDIUM

CVE-2026-3408

CWE-404Published: March 2, 2026· Updated: Mar 4, 2026

6.5
CVSS v3.1
EPSS:0.04%probability of exploitation in 30 daysPercentile:11.8th

Official 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.

NVD Source

Technical Analysis

CVE-2026-3408 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected Vendors & Products

openbabel1 product
open babel
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/VedantMadane/openbabel/commit/e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a
ADVISORYhttps://vuldb.com/?id.348303
ADVISORYhttps://vuldb.com/?submit.763756

All References (7)

→
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

Quick Facts

CVE IDCVE-2026-3408
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-404
CISA KEVNo
EPSS (30d)0.04%
Affected1 vendor
PublishedMar 2, 2026

Related CVEs (CWE-404)

CVE-2026-1875
8.7
CVE-2026-1876
8.7
CVE-2026-11317
8.7
CVE-2026-45174
8.5
CVE-2026-2957
8.1
CVE-2026-7734
7.5

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-3408 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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