1.9

CVSS Score

4.0

-

CVSS Score

Basic Information

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CVE-2025-10995

CVE-2025-10995: Open Babel zipstreamimpl.h underflow memory corruption

A security vulnerability has been detected in Open Babel up to 3.1.1. This vulnerability affects the function zlib_stream::basic_unzip_streambuf::underflow in the library /src/zipstreamimpl.h. Such manipulation leads to memory corruption. Local access is required to approach this attack. The exploit has been disclosed publicly and may be used.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2025-10995

CVE-2025-10995:

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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Miggo AI

Root Cause Analysis

The vulnerability is an out-of-bounds write within the zipstream decompression code bundled with Open Babel. The analysis of the provided patch commit d4621d417c167b50cc8ce7aa3a02557e5b2b81c5 pinpoints the exact location of the flaw. The file src/zipstreamimpl.h contains the vulnerable function zipstream::basic_unzip_streambuf::underflow. Inside this function, a memcpy operation was used for a buffer refill. However, under certain conditions when processing a crafted gzip file, the source and destination memory regions for this memcpy could overlap. The C/C++ standard states that memcpy's behavior is undefined for overlapping regions, which in this case led to a memory corruption vulnerability. The fix was to replace memcpy with memmove, a function that is guaranteed to work correctly even with overlapping memory. Any user of the Open Babel library that parses a malicious gzip-compressed file would trigger this vulnerable function.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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