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CVE-2026-2704— Open Babel CIF File transform3d.cpp DescribeAsString out-of-bounds

Quick assessment

Affected
n/a Open Babel
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

openbabel是Open Babel开源的一个化学工具箱软件。 openbabel 3.1.1及之前版本存在缓冲区错误漏洞，该漏洞源于文件src/math/transform3d.cpp中函数OpenBabel::transform3d::DescribeAsString存在越界读取。

CVSS 4.3 · Medium EPSS 0.76% · P53

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 3

VendorProduct Version RangeStatus
n/a Open Babel 3.1.0 affected
3.1.1 affected
3.2.0 unaffected
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I. Basic Information for CVE-2026-2704

Vulnerability Information
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Vulnerability Title
Open Babel CIF File transform3d.cpp DescribeAsString out-of-bounds
Source: CVE Program / CVE List V5
Vulnerability Description
A security vulnerability has been detected in Open Babel up to 3.1.1. The affected element is the function OpenBabel::transform3d::DescribeAsString of the file src/math/transform3d.cpp of the component CIF File Handler. The manipulation leads to out-of-bounds read. It is possible to initiate the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 3.2.0 is sufficient to fix this issue. The identifier of the patch is e23a224b8fd9d7c2a7cde9ef4ec6afb4c05aa08a. It is suggested to install a patch to address this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
openbabel 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
openbabel是Open Babel开源的一个化学工具箱软件。 openbabel 3.1.1及之前版本存在缓冲区错误漏洞，该漏洞源于文件src/math/transform3d.cpp中函数OpenBabel::transform3d::DescribeAsString存在越界读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Open Babel 3.1.0 cpe:2.3:a:open_babel:open_babel:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-2704

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III. Intelligence Information for CVE-2026-2704

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Patches & Fixes for CVE-2026-2704 (1)

Vendor Advisories for CVE-2026-2704 (1)

Proof of Concept for CVE-2026-2704 (1)

Vendor Pages for CVE-2026-2704 (1)

Same Patch Batch · n/a · 2026-02-19 · 9 CVEs total

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IV. Related Vulnerabilities

Same product: Open Babel
Same vendor: n/a
Same weakness: CWE-125

V. Comments for CVE-2026-2704

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