CVE-2020-13579
HighAn exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application.
Published Feb 4, 2021 · Updated Nov 21, 2024
Key Facts
Patch immediately- CVE-2020-13579 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Planmaker 2021 (Softmaker), Softmaker Software.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 71% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
71%
Higher than 99.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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Description
An exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application. A specially crafted document can cause the document parser perform arithmetic that may overflow which can result in an undersized heap allocation. Later when copying data from the file into this allocation, a heap-based buffer overflow will occur which can corrupt memory. These types of memory corruptions can allow for code execution under the context of the application. An attacker can entice the victim to open a document to trigger this vulnerability.
Affected Products
2 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Planmaker 2021Softmaker | 1014 | n/a |
| Softmaker Software | >= GmbH SoftMaker Office PlanMaker 2021 (Revision 1014) | n/a |
Timeline
Publicly disclosed
Feb 4, 2021
Last updated
Nov 21, 2024
Weakness Type
- CWE-190 Integer Overflow or Wraparound
- CWE-787 Out-of-bounds Write
References
FAQ
Common Questions.
An exploitable integer overflow vulnerability exists in the PlanMaker document parsing functionality of SoftMaker Office 2021’s PlanMaker application.
Affected: Planmaker 2021 (Softmaker) versions 1014; Softmaker Software versions >= GmbH SoftMaker Office PlanMaker 2021 (Revision 1014). The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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