Vulnerability · Published Jan 6, 2021 · Assigned by talos

CVE-2020-13544

High 8.8

In plain English

A high-severity security flaw in Softmaker. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High

Exploit odds (30 days)1.6%top 24.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

An exploitable sign extension 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 sign-extend a length used to terminate a loop, which can later result in the loop’s index being used to write outside the bounds of a heap buffer during the reading of file data. An attacker can entice the victim to open a document to trigger this vulnerability.

Affected products (as reported)

Vendor	Product	Versions
n/a	Softmaker	SoftMaker Software GmbH SoftMaker Office TextMaker 2021 (revision 1014)

Weakness: CWE-194 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1161 x_refsource_MISC