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MicroMathematics version before commit 5c05ac8 contains a XML External Entity (XXE)…

Priority MEDIUM 47CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA.

Summary

MicroMathematics version before commit 5c05ac8 contains a XML External Entity (XXE) vulnerability in SMathStudio files that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via Specially crafted SMathStudio files. This vulnerability appears to have been fixed in after commit 5c05ac8.

Why it matters now

EPSS 0.01855 79th percentileScored 2026-11-07
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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:micromathematics_project:micromathematics:*:*:*:*:*:*:*:*before 2.17.3VulnerableMicromathematics Project
  • cpe:2.3:a:micromathematics_project:micromathematics:*:*:*:*:*:*:*:* Versions before 2.17.3 Vulnerable ·Micromathematics Project

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000821
  2. 2026-10-03 Alias added: GHSA-7q84-r8xm-hp4c

References

Sources