CVE-2026-49788: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft Windows 10 Version 1607
CVE-2026-49788 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 where HTTP/2 resource allocation lacks limits or throttling. This flaw allows an unauthorized attacker to cause a denial of service (DoS) condition over the network by exhausting system resources. The vulnerability affects Windows 10 Version 1607 build 10.0.14393.0. An official fix is available from Microsoft.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-49788) involves improper resource allocation controls in the HTTP/2 implementation on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Specifically, the system allocates resources without enforcing limits or throttling, enabling an unauthenticated attacker to trigger a denial of service by exhausting resources over the network. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has published an official fix to address this issue.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication or user interaction to cause a denial of service by exhausting system resources through HTTP/2 traffic. The impact is limited to availability, with no confidentiality or integrity effects reported.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49788.
CVE-2026-49788: CWE-770: Allocation of Resources Without Limits or Throttling in Microsoft Windows 10 Version 1607
Description
CVE-2026-49788 is a high-severity vulnerability in Microsoft Windows 10 Version 1607 where HTTP/2 resource allocation lacks limits or throttling. This flaw allows an unauthorized attacker to cause a denial of service (DoS) condition over the network by exhausting system resources. The vulnerability affects Windows 10 Version 1607 build 10.0.14393.0. An official fix is available from Microsoft.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-49788) involves improper resource allocation controls in the HTTP/2 implementation on Microsoft Windows 10 Version 1607 (build 10.0.14393.0). Specifically, the system allocates resources without enforcing limits or throttling, enabling an unauthenticated attacker to trigger a denial of service by exhausting resources over the network. The CVSS v3.1 base score is 7.5, indicating high severity with network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. Microsoft has published an official fix to address this issue.
Potential Impact
An attacker can exploit this vulnerability remotely without authentication or user interaction to cause a denial of service by exhausting system resources through HTTP/2 traffic. The impact is limited to availability, with no confidentiality or integrity effects reported.
Mitigation Recommendations
An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the security update provided by Microsoft for Windows 10 Version 1607 (build 10.0.14393.0) as detailed in the Microsoft Security Response Center advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49788.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-06-01T17:02:37.207Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49788","vendor":"Microsoft"}]
Threat ID: 6a566f6d68715ace43e6b539
Added to database: 07/14/2026, 17:18:37 UTC
Last enriched: 07/15/2026, 01:47:54 UTC
Last updated: 07/15/2026, 01:56:54 UTC
Views: 14
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