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Vulnerability · Published Sep 26, 2025 · Assigned by VulDB

CVE-2025-10996Open Babel smilesformat.cpp ParseSmiles heap-based overflow

Medium 5.3

In plain English

A medium-severity heap buffer overflow in Open Babel. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 78.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was detected in Open Babel up to 3.1.1. This issue affects the function OBSmilesParser::ParseSmiles of the file /src/formats/smilesformat.cpp. Performing manipulation results in heap-based buffer overflow. The attack needs to be approached locally. The exploit is now public and may be used.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12openbabelno fix listedDEBIAN-CVE-2025-10996
Debian:13openbabelno fix listedDEBIAN-CVE-2025-10996
Debian:14openbabelno fix listedDEBIAN-CVE-2025-10996
PyPIopenbabel3.2.0GHSA-j35x-w4gj-pf7w
PyPIopenbabel3.2.0PYSEC-2026-2781
Ubuntu:22.04:LTSopenbabelno fix listedUBUNTU-CVE-2025-10996
Ubuntu:24.04:LTSopenbabelno fix listedUBUNTU-CVE-2025-10996
Ubuntu:25.10openbabelno fix listedUBUNTU-CVE-2025-10996
Ubuntu:26.04:LTSopenbabelno fix listedUBUNTU-CVE-2025-10996
Ubuntu:26.10openbabelno fix listedUBUNTU-CVE-2025-10996

Affected products (as reported)

VendorProductVersions
n/a Open Babel 3.1.03.1.1

Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References