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VulnerabilityPublished Updated

CVE-2025-54104: Microsoft Windows 10 Version 1507 · Type Confusion

Affects Microsoft Windows 10 Version 1507Source CVE Database V5

0

Not known to be exploited · CVSS 6.7 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
6.7Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Sep 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Microsoft Windows 10 Version 1507Affected
  • =10.0.10240.0
Fixed in–

AI-suggested

To mitigate CVE-2025-54104, organizations should first identify and inventory all systems running Windows 10 Version 1507 (build 10.0.10240.0). Given the age and limited support for this version, the most effective mitigation is to upgrade affected systems to a supported and fully patched Windows 10 or Windows 11 version. If upgrading is not immediately feasible, organizations should restrict local access to affected machines by enforcing strict access controls, limiting administrative privileges, and monitoring for suspicious local activity. Employ application whitelisting and endpoint detection and response (EDR) tools to detect abnormal behavior related to the Windows Defender Firewall Service. Network segmentation can reduce the risk of lateral movement from compromised endpoints. Additionally, monitor Windows event logs for anomalies in firewall service behavior. Since no patches are currently available, organizations should stay alert for vendor updates and apply them promptly once released. Avoid running unnecessary services and minimize the attack surface on legacy systems. Finally, conduct regular security awareness training to reduce insider threats and credential compromise risks.

Description

Access of resource using incompatible type ('type confusion') in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.

References

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