VulnSocial

CVE-2026-50649Patch(microsoft / .net)

LOWCVSS 7.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch microsoft .net systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.

microsoft CVEsBack to dashboard
1.0/ 10 priority

Sources & remediation

Patch / fix
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Are you affected?

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

  • .net
  • .net_framework
  • visual_studio_2026
  • windows

Threat summary

  • Patch or workaround signal is available
  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 3 signals
  • Technical details provided in 3 signals
  • Peaked 1d ago at 2 mentions (2026-07-15); latest day: 1
  • 3 total mentions across 2 days

Affected systems

Vendors
microsoft
Products
.net.net_frameworkvisual_studio_2026windowswindows_10_1607windows_10_1809windows_10_21h2windows_10_22h2windows_11_23h2windows_11_24h2

9 versions affected across 16 products

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-07-15: 2Mentions · 2026-07-18: 1Patch / Workaround · 2026-07-15: 2Patch / Workaround · 2026-07-18: 1Technical Details · 2026-07-15: 2Technical Details · 2026-07-18: 107-1507-18
Signal classification1 categories
Patch
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-07-152
Patch2
2026-07-181
Patch1
Full discourse3 posts
  • Kevin Gosse@KooKiz
    Patch

    The latest Microsoft Patch Tuesday included my first 3 CVEs 🥳 All RCEs, fixed in .NET 10.0.10. https://github.com/dotnet/core/blob/main/release-notes/10.0/10.0.10/10.0.10.md CVE-2026-56158 (which is 404, for some reason), CVE-2026-50646 (co-attributed to @Ky0toFu who found it faster than I did), and CVE-2026-50649.

    Post summary

    The tweet announces that three RCE vulnerabilities (CVE‑2026‑56158, CVE‑2026‑50646, CVE‑2026‑50649) are fixed in .NET 10.0.10, with no PoC, exploit, or active exploitation information provided.

    3314953.3K
    5.8K followersView on X
  • VulniPulse@vulnipulse
    Patch

    ⚠️ Linux dotnet9-0 alert: CVE-2026-50649 (CVSS 7.8) Attackers could execute arbitrary code. Upgrade to a vendor-listed fixed release. https://vulnipulse.com/advisories/linux-cve-2026-50649 #Linux #dotnet90 #CyberSecurity #CVE

    Post summary

    An advisory highlights CVE‑2026‑50649, allowing arbitrary code execution in Linux dotnet9‑0, and urges users to apply vendor‑issued fixes.

    0000036
    6 followersView on X
  • Windows Forum@windowsforum
    Patch

    🪟 .NET 8.0.29 isn’t a “nice to have”—malicious data can turn into code execution. Patch now, because “I only opened a file” remains Windows’ least comforting security strategy. https://windowsforum.com/threads/cve-2026-50649-update-net-8-0-29-to-fix-code-execution.438606/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #NetSecurity #DeserializationVulnerability #VisualStudioUpdates #Cve202650649 https://t.co/mFT9ImOTzu

    Post summary

    The post warns that CVE‑2026‑50649 in .NET 8.0.29 allows deserialization‑based code execution and urges users to apply the patch immediately.

    0000012
    1.2K followersView on X
CPE platform detail35 entries

35 of 35 entries

PartVendorProductVersionTarget SWTarget HW
Appmicrosoft.net---
Appmicrosoft.net_framework3.5--
Appmicrosoft.net_framework4.6.2--
Appmicrosoft.net_framework4.7--
Appmicrosoft.net_framework4.7.1--
Appmicrosoft.net_framework4.7.2--
Appmicrosoft.net_framework4.8--
Appmicrosoft.net_framework4.8.1--
Appmicrosoftvisual_studio_2026---
OSmicrosoftwindows---
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_23h2--arm64
OSmicrosoftwindows_11_23h2--x64
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_11_26h1--arm64
OSmicrosoftwindows_11_26h1--x64
OSmicrosoftwindows_server_2012---
OSmicrosoftwindows_server_2012r2--
OSmicrosoftwindows_server_2016---
OSmicrosoftwindows_server_2019---
OSmicrosoftwindows_server_2022---

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