Vulnerability identifier: #VU84093

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-6186

CWE-ID: CWE-254

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibreOffice
Client/Desktop applications / Office applications

Vendor: LibreOffice

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper validation of hyperlinks within the document. A remote attacker can create a specially crafted hyperlink, trick the victim into clicking on the link inside the document and execute arbitrary macro without a warning, resulting in a code execution.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LibreOffice: 7.6.3.1 - 7.6.3.2, 7.4.0.1 - 7.4.0.3, 7.3.5.1 - 7.3.5.2, 7.3.4.1 - 7.3.4.2, 7.2.7.1 - 7.2.7.2, 7.3.3.1 - 7.3.3.2, 7.3.2.1 - 7.3.2.2, 7.2.6.1 - 7.2.6.2, 7.3.1.1 - 7.3.1.3, 7.3.0.1 - 7.3.0.3, 7.2.5.1 - 7.2.5.2, 7.1.8.1, 7.2.4.1, 7.2.3.1 - 7.2.3.2, 7.1.7.1 - 7.1.7.2, 7.2.2.1 - 7.2.2.2, 7.2.1.1 - 7.2.1.2, 7.1.6.1 - 7.1.6.2, 7.2.0.1 - 7.2.0.4, 7.1.5.1 - 7.1.5.2, 7.1.4.1 - 7.1.4.2, 7.0.6.1 - 7.0.6.2, 7.1.3.1 - 7.1.3.2, 7.1.2.1 - 7.1.2.2, 7.0.5.1 - 7.0.5.2, 7.1.1.1 - 7.1.1.2, 7.1.0.1 - 7.1.0.3, 7.0.4.1 - 7.0.4.2, 7.0.3.1, 7.0.2.1 - 7.0.2.2, 7.0.1.1 - 7.0.1.2, 7.0.0.1 - 7.0.0.3

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External links
http://www.libreoffice.org/about-us/security/advisories/cve-2023-6186

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.