CVE-2026-49160

CVE Enrichment

CVSS: 7.5 HIGH
EPSS: 56.60%
EPSS Percentile: 99.06%
CISA KEV: Not listed

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: [email protected]
Published: 10-Jun-2026 00:17
Last Modified: 23-Jul-2026 15:10
EPSS Date: 2026-10-30
CWE: CWE-400

CVSS Vector


            CVSS:3.1                            AV:N /
                            AC:L /
                            PR:N /
                            UI:N /
                            S:U /
                            C:N /
                            I:N /
                            A:H

Affected Products / Versions

microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.9234
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
microsoft / windows_10_1607
Version / affected range: * · before (exclusive) 10.0.14393.9234
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.8880
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
microsoft / windows_10_1809
Version / affected range: * · before (exclusive) 10.0.17763.8880
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7417
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7417
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_21h2
Version / affected range: * · before (exclusive) 10.0.19044.7417
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7417
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7417
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*
microsoft / windows_10_22h2
Version / affected range: * · before (exclusive) 10.0.19045.7417
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
microsoft / windows_11_23h2
Version / affected range: * · before (exclusive) 10.0.22631.7219
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_23h2
Version / affected range: * · before (exclusive) 10.0.22631.7219
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_24h2
Version / affected range: * · before (exclusive) 10.0.26100.8655
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_24h2
Version / affected range: * · before (exclusive) 10.0.26100.8655
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_25h2
Version / affected range: * · before (exclusive) 10.0.26200.8655
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
microsoft / windows_11_25h2
Version / affected range: * · before (exclusive) 10.0.26200.8655
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
microsoft / windows_11_26h1
Version / affected range: * · before (exclusive) 10.0.28000.2269
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
microsoft / windows_11_26h1
Version / affected range: * · before (exclusive) 10.0.28000.2269
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
microsoft / windows_server_2016
Version / affected range: * · before (exclusive) 10.0.14393.9234
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
microsoft / windows_server_2019
Version / affected range: * · before (exclusive) 10.0.17763.8880
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
microsoft / windows_server_2022
Version / affected range: * · before (exclusive) 10.0.20348.5256
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
microsoft / windows_server_2025
Version / affected range: * · before (exclusive) 10.0.26100.32995
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

References

[email protected]

Last enrichment sync: 31-Oct-2026 19:52
Sources: NVD · FIRST EPSS · CISA KEV
Latest successful provider update; providers refresh independently.

Reported Context (3)

Microsoft disclosed three vulnerabilities — CVE-2026-45586, CVE-2026-50507 and CVE-2026-49160 — that were publicly known at the time of release, but not yet exploited in the wild, according to the company. Microsoft Patch Tuesday Fixes Record 206 Vulnerabilities
CVE-2026-49160 addresses the HTTP.sys “HTTP/2 Bomb” denial-of-service issue. Microsoft’s June 2026 Patch Tuesday Fixes 200 Flaws, Including Three Publicly Disclosed Zero-Days
One of them is CVE-2026-49160, described as a denial-of-service (DoS) issue affecting Windows. Microsoft’s June 2026 Patch Tuesday Fixes About 200 Vulnerabilities

CVE (4)

People (6)

MITRE ATT&CK (2)

Vendors (1)

Products (13)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.