CVE-2025-10994 Open Babel gamessformat.cpp ReadMolecule use after free
A use-after-free vulnerability in Open Babel allows local attackers to potentially execute arbitrary code or cause a 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-2025-10994?
CVE-2025-10994 is a medium-severity use after free 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 weakness has been identified in Open Babel up to 3.1.1. This affects the function GAMESSOutputFormat::ReadMolecule of the file gamessformat.cpp. This manipulation causes use after free. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be exploited.
Which versions are affected by CVE-2025-10994?
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 |
Linux distribution packages (1)
openbabel openSUSE:Tumbleweed | All versions | 3.2.1-1.1 |
Products include Openbabel Open Babel.
How do I fix CVE-2025-10994?
Upgrade openbabel to 3.2.0 or later.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2025-10994 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-10994 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-2025-10994, GHSA-pp85-5j63-xpq3, PYSEC-2026-2789, UBUNTU-CVE-2025-10994, openSUSE-SU-2026:11259-1.