# CVE-2020-13545

## Summary

- **CVE ID:** CVE-2020-13545
- **Severity:** HIGH
- **CVSS Score:** 8.8 (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
- **CWE:** CWE-196
- **Published:** Jan 6, 2021
- **Last Modified:** Mar 14, 2026

## Description

An exploitable signed conversion vulnerability exists in the TextMaker document parsing functionality of SoftMaker Office 2021’s TextMaker application. A specially crafted document can cause the document parser to miscalculate a length used to allocate a buffer, later upon usage of this buffer the application will write outside its bounds resulting in a heap-based memory corruption. An attacker can entice the victim to open a document to trigger this vulnerability.

## Affected Products

- n/a — Softmaker (SoftMaker Software GmbH SoftMaker Office TextMaker 2021 (revision 1014))

## References

- [CNA](https://talosintelligence.com/vulnerability_reports/TALOS-2020-1162)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.40%
- **EPSS Percentile:** 60.0

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._