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CVE-2025-7916VulnerabilityPublished

CVE-2025-7916: Simopro Technology WinMatrix3 · Deserialization of Untrusted Data

Affects Simopro Technology WinMatrix3Source CVE Database V5

0

Not known to be exploited · CVSS 9.3 Critical.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 4.0 base score
9.3Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.8% chance of exploitation in 30 days – higher than 59% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 21 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Affected software

ProductAffectedFixed in
Simopro Technology WinMatrix3Affected
  • =0
Fixed in–

AI-suggested

1. Immediate Network Segmentation: Isolate WinMatrix3 servers from untrusted networks and restrict access to trusted management networks only. 2. Implement Strict Firewall Rules: Block all unnecessary inbound traffic to the WinMatrix3 server, allowing only essential communication from known IP addresses. 3. Use Web Application Firewalls (WAF): Deploy WAFs with custom rules to detect and block suspicious serialized payloads targeting WinMatrix3. 4. Monitor Network Traffic and Logs: Establish enhanced monitoring for unusual activity or anomalies related to WinMatrix3, including unexpected serialized data patterns. 5. Disable or Limit Deserialization Features: If possible, configure WinMatrix3 to disable deserialization of untrusted data or restrict deserialization to safe types only. 6. Apply Principle of Least Privilege: Run WinMatrix3 services with minimal privileges to limit the impact of potential exploitation. 7. Prepare for Patch Deployment: Maintain close contact with Simopro Technology for updates and apply patches immediately upon release. 8. Incident Response Planning: Develop and test incident response procedures specific to this vulnerability to ensure rapid containment and recovery.

Description

WinMatrix3 developed by Simopro Technology has an Insecure Deserialization vulnerability, allowing unauthenticated remote attackers to execute arbitrary code on the server by sending maliciously crafted serialized contents.

References

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