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PatchSiren cyber security CVE debrief

CVE-2026-85322 Microsoft CVE debrief

The Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability, CVE-2026-85322, is a high-severity vulnerability that allows unauthorized information disclosure over a network. Defenders responsible for Windows systems, particularly those with RRAS enabled, should assess exposure and apply patches to prevent potential information disclosure. The CVE record was published on 2026-10-13T19:00:01.500Z and has not been modified since then. The NVD entry is currently HIGH. This vulnerability is caused by the use of an uninitialized resource in Windows Routing and Remote Access Service (RRAS).

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, particularly those with RRAS enabled, should assess exposure and apply patches to prevent potential information disclosure.

Why it matters

CVE-2026-85322 is a high-severity vulnerability in Windows Routing and Remote Access Service (RRAS) that allows unauthorized information disclosure. Defenders should verify exposure, apply patches, and monitor network activity to prevent potential exploitation.

  • Potential information disclosure over the network
  • Verification of RRAS exposure and configuration
  • Application of patches for affected Windows versions
  • Monitoring network activity for suspicious attempts

Technical summary

The Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability, CVE-2026-85322, allows an unauthorized attacker to disclose information over a network due to the use of an uninitialized resource in RRAS. This vulnerability affects Windows systems with RRAS enabled. Defenders should verify exposure and apply patches from Microsoft for affected Windows versions. Monitoring network activity for potential information disclosure attempts is also recommended.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Windows Routing and Remote Access Service (RRAS) Information Disclosure Vulnerability.

Recommended defensive actions

  • Verify exposure of Windows Routing and Remote Access Service (RRAS) to unauthorized attackers
  • Apply patches from Microsoft for affected Windows versions
  • Monitor network activity for potential information disclosure attempts

Evidence notes

The CVE Program record and NVD vulnerability detail provide information on the vulnerability. Microsoft's advisory is referenced as a supplemental source.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-85322 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-85322

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

  • CVE-2026-85322 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-85322

    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.