Incorrect numeric conversion in Softmaker
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
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.
Why it matters now
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-2020-13545
- 2026-10-03 Alias added: GHSA-7q67-hcv3-7rj3
References
More Softmaker Office vulnerabilities
- TI-2020-10622 Incorrect numeric conversion in Softmaker CVSS 3.1HIGH 7.8
Sources
- CVE-2020-13545 · CVE Program
- CVE-2020-13545 · NVD
- FIRST EPSS
- GHSA-7q67-hcv3-7rj3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences