Signal is active with 3 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Heap-based buffer overflow in Windows Resilient File System (ReFS) allows an authorized attacker to execute code locally.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-49793 That's MY BROTHER @1n1t1al 👊👊🫵🫵🫵 https://t.co/sImRbjMg8X
Post summary
The tweet shares a link to Microsoft’s update guide for CVE‑2026‑49793 but offers no additional details on the vulnerability, exploitation, or 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 tweet notes that two vulnerabilities (CVE‑2026‑49793 and CVE‑2026‑49792) were fixed during Patch Tuesday, without providing technical or exploitation details.
🪟 Microsoft calls it “Remote Code Execution,” but CVE-2026-49793 needs an authenticated local attacker. Still patch it—because ReFS shouldn’t become Windows’ newest crash-to-compromise shortcut. https://windowsforum.com/threads/cve-2026-49793-fixes-refs-local-code-execution-in-july-updates.438336/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #WindowsSecurity #PatchManagement #RefsVulnerability https://t.co/gwyxdnTIIw
Post summary
The tweet highlights Microsoft’s CVE-2026-49793 as a local RCE in ReFS and urges users to patch to prevent exploitation.
20 of 20 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| OS | microsoft | windows_10_1607 | - | - | x64 |
| OS | microsoft | windows_10_1607 | - | - | x86 |
| OS | microsoft | windows_10_1809 | - | - | x64 |
| OS | microsoft | windows_10_1809 | - | - | x86 |
| OS | microsoft | windows_10_21h2 | - | - | arm64 |
| OS | microsoft | windows_10_21h2 | - | - | x64 |
| OS | microsoft | windows_10_21h2 | - | - | x86 |
| OS | microsoft | windows_10_22h2 | - | - | arm64 |
| OS | microsoft | windows_10_22h2 | - | - | x64 |
| OS | microsoft | windows_10_22h2 | - | - | x86 |
| OS | microsoft | windows_11_24h2 | - | - | arm64 |
| OS | microsoft | windows_11_24h2 | - | - | x64 |
| OS | microsoft | windows_11_25h2 | - | - | arm64 |
| OS | microsoft | windows_11_25h2 | - | - | x64 |
| OS | microsoft | windows_11_26h1 | - | - | arm64 |
| OS | microsoft | windows_11_26h1 | - | - | x64 |
| OS | microsoft | windows_server_2016 | - | - | - |
| OS | microsoft | windows_server_2019 | - | - | - |
| OS | microsoft | windows_server_2022 | - | - | - |
| OS | microsoft | windows_server_2025 | - | - | - |