1.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2025-11000

CVE-2025-11000: Open Babel PQSformat.cpp ReadMolecule null pointer dereference

A vulnerability was determined in Open Babel up to 3.1.1. This affects the function PQSFormat::ReadMolecule of the file /src/formats/PQSformat.cpp. This manipulation causes null pointer dereference. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-11000

CVE-2025-11000:

1.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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Technical Details

SSVC / BOD 26-04 ↗

Exploitation pocAutomatable NoTech Impact Partial

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Package Name	Ecosystem	Vulnerable Versions	First Patched Version
openbabel	pip	< 3.2.0	3.2.0

Technical Details

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Root Cause Analysis

The vulnerability is a classic out-of-bounds read in C++. The lowerit function in src/formats/PQSformat.cpp processes a character array s. Inside a loop, it checks for an equals sign '='. When found, it attempts to look at the preceding 4 characters to see if they are "file". However, it does not check if there are at least 4 characters before the '='. If a malicious PQS file is crafted with an '=' at the beginning of a line, the code will attempt to read from s[-4], s[-3], etc., which is before the allocated buffer. This leads to a crash and a denial of service, and potentially information disclosure. The vulnerable function is clearly OpenBabel::PQSFormat::lowerit as identified in the commit patch.

Vulnerable functions

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WAF Rule

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Reasoning

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