Incorrect numeric conversion in Softmaker
Priority LOW 37CWE-194Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
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.
Why it matters now
EPSS 0.016 75th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Softmaker | SoftMaker Software GmbH SoftMaker Office TextMaker 2021 (revision 1014) | — | No fix listed | CNA |
- Softmaker Vendor— Affected SoftMaker Software GmbH SoftMaker Office TextMaker 2021 (revision 1014) Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13544
- 2026-10-03 Alias added: GHSA-38rx-c85f-92fw
References
More Softmaker Office vulnerabilities
- TI-2020-10623 Incorrect numeric conversion in Softmaker CVSS 3.1HIGH 7.8
Sources
- CVE-2020-13544 · CVE Program
- CVE-2020-13544 · NVD
- FIRST EPSS
- GHSA-38rx-c85f-92fw · GitHub Advisory Database · CC BY 4.0
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