Recorded 22 Oct 2026 at 17:33 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.
Windows Remote Desktop Services Remote Code Execution Vulnerability
Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.
What it said
- CVE
- CVE-2026-70187
- Severity
- Critical
- CVSS base score
- 8.1
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- Impact
- Remote Code Execution
- Exploitation detected
- Not reported by MSRC
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
- Component
- Remote Desktop Gateway Service
- Weakness
- CWE-416: Use After Free
- Issued by
- Microsoft
- Customer action
- Required: apply the update
- Affected products
- Windows Server 2012, Windows Server 2012 (Server Core installation), Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016, Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2019 (Server Core installation), Windows Server 2022, Windows Server 2022 (Server Core installation), Windows Server 2025, Windows Server 2025 (Server Core installation)
- Updates that fix it
- KB5126646: Windows Server 2025, Windows Server 2025 (Server Core installation) (restart required); KB5126651: Windows Server 2019, Windows Server 2019 (Server Core installation) (restart required); KB5126655: Windows Server 2022, Windows Server 2022 (Server Core installation) (restart required); KB5126835: Windows Server 2012, Windows Server 2012 (Server Core installation) (restart required); KB5126836: Windows Server 2012 R2, Windows Server 2012 R2 (Server Core installation) (restart required); KB5126868: Windows Server 2016, Windows Server 2016 (Server Core installation) (restart required)
- CISA KEV
- Not listed in the collected catalog
- EPSS
- 0.7%; scored 22 Oct 2026
- Public exploit code
- No Nuclei template listed
- Published
- 13 Oct 2026 07:00 UTC
- Last revised
- 13 Oct 2026 07:00 UTC
- Revision note
- Information published.
Recorded links
Source evidence when recorded
- Microsoft security releases
- Complete at observationRead 22 Oct 2026 at 17:32 UTC
- CISA KEV
- Complete at observationRead 22 Oct 2026 at 17:32 UTC
- FIRST EPSS
- Complete at observationRead 22 Oct 2026 at 17:32 UTC
- Public exploit code
- Complete at observationRead 22 Oct 2026 at 17:32 UTC
Coverage describes the sources at this observation. A complete read then does not establish their current position.
What changed
First observed 14 Oct 2026- 22 Oct 2026 · 17:33:15 UTC EPSS0.7%; scored 21 Oct 2026 → 0.7%; scored 22 Oct 2026
- 21 Oct 2026 · 21:47:24 UTC EPSS0.7%; scored 20 Oct 2026 → 0.7%; scored 21 Oct 2026
- 20 Oct 2026 · 20:53:31 UTC EPSS0.7%; scored 19 Oct 2026 → 0.7%; scored 20 Oct 2026
- 19 Oct 2026 · 15:12:40 UTC EPSS0.7%; scored 18 Oct 2026 → 0.7%; scored 19 Oct 2026
- 19 Oct 2026 · 15:12:40 UTC Link: Cisco Talos analysishttps://blog.talosintelligence.com/microsoft-patch-tuesday-for-october-2026
- 18 Oct 2026 · 14:54:30 UTC EPSS0.7%; scored 16 Oct 2026 → 0.7%; scored 18 Oct 2026
- 18 Oct 2026 · 14:54:30 UTC Link: October 2026/security?release=2026-Oct#cves
- 16 Oct 2026 · 16:13:25 UTC EPSS0.7%; scored 15 Oct 2026 → 0.7%; scored 16 Oct 2026
- 15 Oct 2026 · 21:30:54 UTC EPSS0.7%; scored 14 Oct 2026 → 0.7%; scored 15 Oct 2026
- 15 Oct 2026 · 01:07:54 UTC EPSSNot scored → 0.7%; scored 14 Oct 2026
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