Buffer overflow in Openbabel Open_babel
CVE-2026-2705
A vulnerability was detected in Open Babel up to 3.1.1. The impacted element is the function OBAtom::SetFormalCharge in the library include/openbabel/atom.h of the component MOL2 File Handler. The manipulation results in out-of-bounds read…
Vulnerability class: Buffer Overflow
EPSS: 0.007 (48.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Openbabel Open_babel
- N/a Open Babel — versions 3.1.0, 3.1.1
Weakness classification (CWE)
References
- cna@vuldb.com (technical-description, VDB Entry, Third Party Advisory, vdb-entry)
- cna@vuldb.com (signature, Permissions Required, permissions-required, VDB Entry)
- cna@vuldb.com (VDB Entry, Third Party Advisory, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Issue Tracking)
- cna@vuldb.com (issue-tracking, patch)
- cna@vuldb.com (Exploit, exploit)
- cna@vuldb.com (patch)
Frequently asked questions
- What is CVE-2026-2705?
- CVE-2026-2705 is a medium-severity vulnerability in Openbabel Open_babel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.3/10. Published 2026-02-19.
- How severe is CVE-2026-2705?
- Medium severity. CVSS v3 base score is 4.3 out of 10.