Vulnerability identifier: #VU50306

Vulnerability risk: High

CVSSv3.1: 8.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-13586

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PlanMaker 2021
Client/Desktop applications / Office applications

Vendor: SoftMaker

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the Excel Document SST Record 0x00fc functionality. A remote attacker can pass specially crafted file, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

PlanMaker 2021: Revision 1014

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External links
http://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1197

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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.