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VulnerabilityPublished Updated

CVE-2026-49160: Microsoft Windows 10 Version 1607 · Uncontrolled Resource Consumption

Affects Microsoft Windows 10 Version 1607Source CVE Database V5

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Not known to be exploited · 56% EPSS · CVSS 7.5 High : upgrade to 10.0.14393.9234 as a priority.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
56.5% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 10.0.14393.9234, 10.0.17763.8880, 10.0.19044.7417 +7
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: evidence found.

    Public exploit code: GitHub proofs of concept

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 29 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
MicrosoftWindows 10 Version 1607Affected
  • >=10.0.14393.0 <10.0.14393.9234
Fixed in
  • 10.0.14393.9234
MicrosoftWindows 10 Version 1809Affected
  • >=10.0.17763.0 <10.0.17763.8880
Fixed in
  • 10.0.17763.8880
MicrosoftWindows 10 Version 21H2Affected
  • >=10.0.19044.0 <10.0.19044.7417
Fixed in
  • 10.0.19044.7417
MicrosoftWindows 10 Version 22H2Affected
  • >=10.0.19045.0 <10.0.19045.7417
Fixed in
  • 10.0.19045.7417
MicrosoftWindows 11 version 23H2Affected
  • >=10.0.22631.0 <10.0.22631.7219
Fixed in
  • 10.0.22631.7219
MicrosoftWindows 11 Version 23H2Affected
  • >=10.0.22631.0 <10.0.22631.7219
Fixed in
  • 10.0.22631.7219

AI-suggested

An official fix is available from Microsoft. Users and administrators should apply the security update referenced in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49160 to remediate this vulnerability.

Description

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

References

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