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CVE-2026-49160
MSR
HighConfirmedExploit available

Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.

CVSS
7.5
High
EPSS
0.01
p80
Published
2026-01-01
Updated
2026-01-01
Description

Uncontrolled resource consumption in HTTP/2 allows an unauthorized attacker to deny service over a network.

Tags · CWE
Pre-auth
CWE-400
CAPEC-147
CAPEC-227
CAPEC-492
Affected products
Windows_10_1607 < 10.0.14393.9234Windows_10_1809 < 10.0.17763.8880Windows_10_21h2 < 10.0.19044.7417Windows_10_22h2 < 10.0.19045.7417Windows_11_23h2 < 10.0.22631.7219Windows_11_24h2 < 10.0.26100.8655Windows_11_25h2 < 10.0.26200.8655Windows_11_26h1 < 10.0.28000.2269Windows_server_2016 < 10.0.14393.9234Windows_server_2019 < 10.0.17763.8880Windows_server_2022 < 10.0.20348.5256Windows_server_2025 < 10.0.26100.32995
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Timeline
2026-01-01
Published
2026-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: N
None (N)
Integrity Impact
I: N
None (N)
Availability Impact
A: H
High (H)
Exploit indicators
EPSS
0.013 · p80
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-227 · CWE-400
Known exploits — Сканер-ВС
CVE-2026-49160
github-poc · https://github.com/dhmosfunk/CVE-2026-49160-HTTP.sys
Enterprise
Affected software
ProductVendorStatus
windows_10_1607*Tracked
windows_10_1809*Tracked
windows_10_21h2*Tracked
windows_10_22h2*Tracked
windows_11_23h2*Tracked
windows_11_24h2*Tracked
windows_11_25h2*Tracked
windows_11_26h1*Tracked
windows_server_2016*Tracked
windows_server_2019*Tracked
windows_server_2022*Tracked
windows_server_2025*Tracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
WindowsMicrosoftTracked
Source databases
MSR
CVE
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