CVE-2025-10997 Open Babel chemkinformat.cpp CheckSpecies heap-based overflow
A heap-based buffer overflow in Open Babel allows local attackers to execute arbitrary code or cause denial of service via crafted input.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-10997?
CVE-2025-10997 is a medium-severity memory corruption vulnerability in Open Babel, published on 26 Sep 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A flaw has been found in Open Babel up to 3.1.1. Impacted is the function ChemKinFormat::CheckSpecies of the file /src/formats/chemkinformat.cpp. Executing manipulation can lead to heap-based buffer overflow. The attack can only be executed locally. The exploit has been published and may be used.
Which versions are affected by CVE-2025-10997?
3 open source packages ship an affected version, including openbabel. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openbabel PyPI | All versions | 3.2.0 |
openbabel PyPI | All versions | 3.2.0 |
openbabel PyPI | All versions | 3.2.0 |
Products include Openbabel Open Babel.
How do I fix CVE-2025-10997?
Upgrade openbabel to 3.2.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2025-10997 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10997 exists.
Other vulnerabilities in Open Babel
- CVE-2022-41793 Open Babel has out-of-bounds write in CSR PadString (title field)
- CVE-2022-42885 Open Babel has uninitialized pointer dereference in GRO residue parser
- CVE-2022-43467 Open Babel has out-of-bounds write in PQS coord_file parser
- CVE-2022-44451 Open Babel has uninitialized pointer dereference in MSI atom parser
- CVE-2022-46280 Open Babel has uninitialized pointer dereference in PQS pFormat
Sources
Also known as DEBIAN-CVE-2025-10997, GHSA-8wq6-qh76-wpv9, PYSEC-2026-2778, UBUNTU-CVE-2025-10997.