EUVD-2026-73457
GHSA-p522-jr5c-crrf
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Network-reachable, unauthenticated, no user interaction required; impact is availability-only crash with no confidentiality or integrity effect.
Primary rating from Vendor (microsoft).
CVSS VectorVendor: microsoft
Lifecycle Timeline
7DescriptionCVE.org
Out-of-bounds read in BranchCache allows an unauthorized attacker to deny service over a network.
AnalysisAI
Out-of-bounds read in Windows BranchCache allows an unauthenticated network attacker to crash the service, causing a denial of service on affected Windows systems. The flaw is rooted in improper bounds checking (CWE-125) within the BranchCache peer-caching protocol handler, and is exploitable across a broad range of Windows versions from Server 2012 through Server 2025 and Windows 10/11. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the BranchCache feature is installed and the BranchCache service is running on the target Windows system. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H yields a base score of 7.5, which accurately reflects a straightforward, unauthenticated, network-reachable DoS with no confidentiality or integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply Microsoft's cumulative update through Windows Update or WSUS, targeting the specific build thresholds enumerated in the EUVD affected-version data (e.g., Windows Server 2025 patched at build 10.0.26100.33438, Windows 11 24H2 at 10.0.26100.9445). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify all Windows Server 2012 R2 and later systems and Windows 10/11 devices with BranchCache enabled, and assess which are critical to file-sharing or content-distribution operations. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-125 – Out-of-bounds Read
View allSame technique Denial Of Service
View allShare
External POC / Exploit Code
Leaving vuln.today