CVE-2026-49792Patch(microsoft / windows_10_1607)

LOWCVSS 7.8 · HIGH

Signal is active with 3 mentions in latest observed window

Immediate actions

  • Patch microsoft windows_10_1607 systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Numeric truncation error in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.

1.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-197

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • windows_10_1607
  • windows_10_1809
  • windows_10_21h2
  • windows_10_22h2

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 3 total mentions across 1 day

Affected systems

Vendors
Products
windows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_24h2windows_11_25h2windows_11_26h1windows_server_2016windows_server_2019windows_server_2022

Deep dive

Activity timeline3 mentions / 1d
01223Mentions · 2026-07-15: 3Patch / Workaround · 2026-07-15: 2Technical Details · 2026-07-15: 107-15
Signal classification2 categories
Patch
266.7%
General
133.3%
Referenced assets3 URLs
Full discourse3 posts
  • D3XTER@1n1t1al
    Patch

    Two of my humble bugs were patched in this crazy Patch Tuesday 😀. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49793 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49792

    Post summary

    The author highlights that two CVEs (CVE-2026-49793 and CVE-2026-49792) were addressed in the recent Patch Tuesday, providing links to the official Microsoft patch information.

    20040616
    68 followersView on X
  • D3XTER@1n1t1al
    General

    There were multiple credits for CVE-2026-49792, so cheers to all of them as well🍺

    Post summary

    An acknowledgement of multiple credits for CVE-2026-49792 is made, but the text lacks any substantive technical or exploit-related information.

    00010150
    68 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 ReFS had a “small” numeric truncation bug that could become local code execution. Patch July 14 updates now—because attackers only need one tiny number to turn Windows storage into a foothold. https://windowsforum.com/threads/cve-2026-49792-patch-refs-local-rce-in-july-14-windows-updates.438335/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #RefsVulnerability #PatchTuesday https://t.co/Nq689G4XCK

    Post summary

    The post highlights a numeric truncation bug in ReFS that can lead to local code execution, but stresses that Microsoft has already released a patch in the July 14 Windows updates.

    0000013
    1.2K followersView on X
CPE platform detail20 entries

20 of 20 entries

PartVendorProductVersionTarget SWTarget HW
OSmicrosoftwindows_10_1607--x64
OSmicrosoftwindows_10_1607--x86
OSmicrosoftwindows_10_1809--x64
OSmicrosoftwindows_10_1809--x86
OSmicrosoftwindows_10_21h2--arm64
OSmicrosoftwindows_10_21h2--x64
OSmicrosoftwindows_10_21h2--x86
OSmicrosoftwindows_10_22h2--arm64
OSmicrosoftwindows_10_22h2--x64
OSmicrosoftwindows_10_22h2--x86
OSmicrosoftwindows_11_24h2--arm64
OSmicrosoftwindows_11_24h2--x64
OSmicrosoftwindows_11_25h2--arm64
OSmicrosoftwindows_11_25h2--x64
OSmicrosoftwindows_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---
OSmicrosoftwindows_server_2025---

Explore more