CVE-2026-49787
Status: AnalyzedHigh (7.5)—
Allocation of resources without limits or throttling in Windows HTTP.sys allows an unauthorized attacker to deny service over a network.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Base score: 7.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.17%
- Percentile among all scored CVEs: 67
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1190Exploit Public-Facing Applicationinitial access90 % - Primary impact
T1499.004Application or System Exploitationimpact85 %
Vector CVSS AV:N/AC:L/PR:N sin UI indica red sin autenticación. CWE-770 (recursos sin límites) en HTTP.sys causa DoS por agotamiento de recursos, típicamente T1499.004 (application exhaustion).
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (11)
Microsoft — Windows 10 1607Microsoft — Windows 10 1809Microsoft — Windows 10 21h2Microsoft — Windows 10 22h2Microsoft — Windows 11 24h2Microsoft — Windows 11 25h2Microsoft — Windows 11 26h1Microsoft — Windows Server 2016Microsoft — Windows Server 2019Microsoft — Windows Server 2022Microsoft — Windows Server 2025
CWEs
- CWE-770
References
Raw JSON (NVD)
Show
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