CVE-2020-13586

Name: CVE-2020-13586
Creator: NVD / NIST
Published: 2021-02-04T07:15:13.073+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.52%

Last modified Jun 17, 2026

CVE-2020-13586 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A memory corruption vulnerability exists in the Excel Document SST Record 0x00fc functionality of SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014). A specially crafted malformed file can lead to a heap buffer overflow. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

Description

A memory corruption vulnerability exists in the Excel Document SST Record 0x00fc functionality of SoftMaker Software GmbH SoftMaker Office PlanMaker 2021 (Revision 1014). A specially crafted malformed file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.52%

71.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Softmaker	Planmaker 2021	1014

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1197Exploit, Technical Description, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1197Exploit, Technical Description, Third Party Advisory

Timeline

Published: Feb 4, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-13586?

How severe is CVE-2020-13586?

CVE-2020-13586 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.

How do I fix CVE-2020-13586?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-13586?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST