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PatchSiren cyber security CVE debrief

CVE-2026-96245 Microsoft CVE debrief

A high-severity information disclosure vulnerability exists in the Windows Routing and Remote Access Service (RRAS). An unauthorized attacker can exploit this vulnerability to disclose information over a network. The vulnerability has a CVSS score of 7.5 and is considered high severity. This vulnerability is caused by an out-of-bounds read in RRAS, allowing attackers to access sensitive information. Defenders should prioritize patching, especially for internet-exposed systems, and verify system configurations and inventory for affected versions.

Vendor
Microsoft
Product
Windows 10 Version 1607
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-13
Advisory published
2026-10-13
Advisory updated
2026-10-13

Who should care

Defenders responsible for Windows systems, especially those with RRAS exposed to the internet or untrusted networks, should assess exposure and prioritize patching.

Why it matters

CVE-2026-96245 is a high-severity information disclosure vulnerability in Windows Routing and Remote Access Service (RRAS). Defenders should prioritize patching, especially for internet-exposed systems, and verify system configurations and inventory for affected versions.

  • Potential information disclosure over the network
  • Requires verification of affected versions and exposure
  • Patching is recommended to prevent exploitation
  • Further investigation may be needed to determine scope of impact

Technical summary

The vulnerability is caused by an out-of-bounds read in Windows Routing and Remote Access Service (RRAS). This allows an unauthorized attacker to disclose information over a network. The vulnerability affects Windows systems with RRAS exposed to the internet or untrusted networks. Defenders should focus on patching and verifying system configurations to mitigate this vulnerability.

Defensive priority

Defenders should prioritize patching this vulnerability, especially for systems exposed to the internet or untrusted networks.

Recommended defensive actions

  • Apply patches from Microsoft for affected Windows versions
  • Restrict access to RRAS to trusted users only
  • Monitor network traffic for suspicious activity
  • Verify system configurations and inventory for affected systems

Evidence notes

The CVE Program and NVD provide official records of this vulnerability. Microsoft has released a patch for this vulnerability. Evidence is based on CVE and NVD records, with limitations on affected scope and vendor guidance. Defenders should verify system configurations, review CVE and NVD details, and check for patches from Microsoft for affected Windows versions.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-96245 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-96245

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-96245 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-96245

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.