PT-2026-58159 · Microsoft · Http.Sys+1

CVE-2026-49787 · Published 2026-07-14 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Windows HTTP.sys (affected versions not specified)

Description An issue exists in Windows HTTP.sys where resources are allocated without limits or throttling. This allows an unauthorized attacker to cause a denial-of-service condition over a network, affecting the availability of the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BDU:2026-10107

CVE-2026-49787

Affected Products

Http.Sys

Windows

References · 6

• https://bdu.fstec.ru/vul/2026-10107 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49787 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-49787 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-49787 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2026-49787 · Vendor Advisory
• https://t.me/cveNotify/212124 · Telegram Post